1
INTRODUCTION:
Welcome to the TRUEresult twist 2 Blood
Glucose Monitoring System
Our Commitment to You
TRUEresult twist 2 is a simple, accurate way to
test whole blood glucose (sugar) level, anytime,
anywhere. Our goal is to provide quality healthcare
products and dedicated customer service. For
questions about TRUEresult products, please see
cover for phone number.
This booklet contains all the information needed to
get the most from the TRUEresult twist 2 System.
To start testing quickly, please see the Quick
Reference Guide found inside the front cover of
this Owner’s Booklet.
Please read complete Owner’s Booklet and
all product Instructions for Use before
using the System.
Use By
Date
For in vitro
Diagnostic
Testing Only
Lot
Number
Authorised
Representative
SYMBOLS:
Keep
Dry
Caution
Single
Use
Only
Attention! Read
Instructions
for Use.
Sterile
Control
Storage
Temperature
Range
Manufactured
By
Serial
Number
Control
Level
Biological
Risk
Do Not
Resterilise
For
Assistance
Call
Date of
Manufacture
2
IMPORTANCE OF BLOOD GLUCOSE MONITORING
The more you know about diabetes, the better
you will be able to take care of yourself. A Doctor
or Healthcare Professional will determine target
ranges for blood glucose results and how often to
test. Having most results within the target ranges
shows how well a treatment plan is working to
control glucose levels. Keeping most results within
the target ranges helps slow or stop complications
of diabetes.
NEVER change a treatment plan without consulting
with a Doctor or Healthcare Professional.
Use of the TRUEresult twist 2 Blood Glucose
Monitoring System in a manner not specified in
this Owner’s Booklet is not recommended and may
affect your ability to determine true blood glucose
levels.
The TRUEresult twist 2 System is an in vitro
(outside body) quantitative system that is used for
self-testing and point-of-care testing of only human
whole blood. The most accurate results come from
using fresh whole blood taken from the fingertip or
forearm (capillary) or from the vein (venous).
3
What you need to know when using the
TRUEresult twist 2 System:
• Read all product instructions for use before
testing.
• Use only TRUEresult Test Strips and TRUEresult
Control Solution with TRUEresult twist 2 Meter.
• To help prevent false high results, wash hands
before using the System to test blood, especially
aer handling fruit or other foods containing
sugar.
• Perform Control Tests before performing a blood
glucose test for the rst time (see Control Test).
• Remove only one Test Strip at a time from vial
when testing. Recap vial immediately aer removing Test Strip.
• NEVER reuse Test Strips. NEVER wipe Test
Strips with water, alcohol or any cleaner. DO
NOT attempt to clean and re-use Test Strips.
Reuse of Test Strips will cause inaccurate results.
• NEVER add a second drop of sample to Test
Strip. Adding more sample to the Test Strip gives
an error message.
• Venous whole blood collected into sodium or
lithium heparin blood collection tubes may be
used for testing by Healthcare Professionals.
Use of EDTA blood collection tubes is not
recommended and may cause low results.
Mix tube contents gently before using.
4
IMPORTANT HEALTH and SAFETY
INFORMATION:
The TRUEresult twist 2 Blood Glucose Monitoring
System is for one person use ONLY. DO NOT share
your Meter or your Lancing Device with anyone,
including family members. DO NOT use on more
than one person. ALL parts of the TRUEresult twist 2
Blood Glucose Monitoring System could carry
blood-borne pathogens after use, even after cleaning
and disinfection.
2,3
For cleaning the Meter, see Care, Cleaning. For
cleaning the lancing device, see the lancing device’s
Instructions for Use.
We suggest cleaning the Meter when visibly dirty
or if blood is on the Meter. Wash your hands
thoroughly with soap and warm water after
handling the Meter, lancing device, or Test Strips
as contact with blood presents an infection risk.
Reuse of devices labeled for single-use may result
in product contamination and patient infection.
•
DO NOT perform capillary blood glucose
testing on critically ill patients. Capillary blood
glucose levels in critically ill patients with reduced
peripheral blood flow may not reflect the true
physiological state. Reduced peripheral blood flow
may result from the following conditions (for
example):
4
~ shock
~ severe hypotension
~ severe dehydration
~ hyperglycaemia with hyperosmolarity,
with or without ketosis.
• Do not use the TRUEresult twist 2 for the
diagnosis of diabetes or for testing blood glucose
in neonates (newborns).
•
Do not use TRUEresult twist 2 System during
a xylose absorption test. This may falsely raise
glucose results.
5
Please check with your Doctor
before using TRUEresult twist 2.
5
6
TABLE OF CONTENTS
Phone Number, Fast Test Guide,
Expected Results ........................................... see covers
Introduction and Important Information ...........1
Know the System ...................................................8
Meter ...........................................................................8
Test Strip .................................................................10
Control Solution .....................................................12
Attach/Remove TRUEresult twist 2 Meter to
TRUEresult Test Strip Vial
.....................................13
Getting Started ....................................................14
Quality Control Testing .........................................15
Automatic Self-Test ................................................15
Control Test .............................................................16
How to Test Control Solution ..............................17
Testing Blood ......................................................20
Obtaining a Blood Sample .....................................20
How to Test Blood Glucose ...................................22
Unusual Blood Glucose Test Results ...................24
TRUEresult twist 2 System and
Laboratory Testing .................................................25
Time/Date Set Up ................................................26
Memory................................................................27
View Averages (7-, 14-, 30-day) ...........................27
View Results ............................................................28
Care, Cleaning .....................................................29
Meter Care ...............................................................29
Control Solution Care ............................................30
Test Strip Care .........................................................30
Changing Battery ....................................................31
Troubleshooting ..................................................32
Messages ................................................................... 33
Technical Information ........................................35
Performance Characteristics .................................35
System Specifications ..........................................39
Operating Range .....................................................39
Chemical Composition ..........................................39
EMC Safety Information .......................................40
References ............................................................41
Notes ....................................................................42
7
8
KNOW THE SYSTEM
Meter
Display - Shows test results, messages, user
prompts, other information.
Test Port - Insert TRUEresult Test Strip here.
Set Button - Turn Meter on for Memory, view/
scroll results in Memory, mark result as Alternate
Site, set up date/time.
Battery Tray - Holds battery (one non-rechargeable
3V lithium battery #CR2032).
Meter Label - Contains serial number of Meter.
Identifies Meter when calling for assistance.
Micro USB Port - Used with a cable to upload
results to a computer.
Vial Lip Cover - Locks Meter onto a vial of Test
Strips.
Front of Meter
Back of Meter
1
2
3
4
6
5
7
Display Screen
Time, Date, Control Symbol (-C-), Alternate Site
Symbol (-A-), Average Symbol (7-, 14-, or 30-day)
Test Result
Memory Result
Battery Symbol
Units of Measure - Factory set, cannot be changed
by user.
Drop Symbol
9
Meter Full Display Screen
1
2
3
4
6
5
10
Contact End -
Insert into Test Port with blocks
(contacts) facing up
.
Sample Tip -
Touch to top of sample (fresh,
capillary or venous blood or Control Solution)
after inserting Contact End into Meter.
Sample Placement
Correct Incorrect
•
Do not touch Sample Tip to drop of sample
unless Contact End is inserted into Meter.
• Do not apply blood or Control Solution to top
of Test Strip.
• Do not smear or scrape drop with Test Strip.
• Do not apply more sample to the Test Strip
after testing begins.
• Do not insert Sample Tip with sample into
Meter for testing. May damage Meter.
Test Strip
12
Top of Test Strip
11
Test Strip Vial Label
Lot Number ( ) - Used for identification
when calling for assistance.
Use By Dates ( ) - Write date first opened on
vial label. Discard vial and unused Test Strips if
either 4 months after opening or date printed
next to on vial label has passed, whichever
comes first.
Use of Test Strips or Control Solution past the
Use By Dates may give incorrect test results.
Discard out-of-date products and test with new
products.
Control Test Range - Range of numbers in
which Control Test result must fall to assure
System is working properly.
1
2
2
3
May 30, 2014
1
2
2
3
May 30, 2014
or
12
Control Solution Bottle Label
Lot Number ( ) - Used for identification
when calling for assistance.
Use By Dates ( ) - Write date first opened on
bottle label. Discard bottle if either 3 months
after opening or date printed next to on bottle
label has passed, whichever comes first.
Control Solution Level (1, 2 or 3) - Testing
at least 2 levels of Control Solution is
recommended. Call the number on the cover of
this Booklet for information on how to obtain
different levels of Control Solution.
1
2
3
May 30, 2014
Control Solution
Attach / Remove TRUEresult twist 2 Meter to
TRUEresult Test Strip Vial
The TRUEresult twist 2 Meter is made
to attach to the top of the TRUEresult
Test Strip vial cap.
To attach:
1. Set Test Strip vial on flat
surface with vial lip facing front.
2. With Test Port facing right, place
bottom of Meter firmly on vial
top. Meter must be seated flat on
top of vial cap.
3. Holding the vial, twist the Meter
1/4 turn clockwise. The Test Port
area on the Meter should cover
the vial lip if attached properly.
4. To open the vial, lift up on the
Meter under the Test Port.
To remove:
1. Holding the vial, twist the Meter
1/4 turn counterclockwise.
2. Lift off Meter from vial top.
The Meter may also be used for
testing without attaching to the vial.
13
Lift Up To
Open
Test
Port
Vial Lip
14
GETTING STARTED
The Meter turns on when a Test Strip is inserted
into the Test Port or when Set Button is pressed and
released (see Memory). Meter turns off when the
Test Strip is released from the Meter, Set Button is
pressed and held for 20 seconds, or after 2 minutes
of non-use.
Always check your supplies before using.
• Check Meter for damage (cracked Display,
missing buttons, etc.). If damage is seen, do not
use Meter. Call for assistance.
• Check Test Strip vial for damage (cracked vial,
broken vial, etc.). Discard damaged vial and all
contents (Test Strips) and use a new vial of Test
Strips for testing.
• Write date first opened on Test Strip vial. Check
Use By Dates (written and printed) before using
any Test Strips from the vial. Do not use if 4
months after opening (written date) or if printed
Use By Date has passed.
• Check Control Solution bottle for any leaks or
broken cap. Discard bottle and open a new one
for testing.
• Write date first opened on Control Solution
bottle label. Check Use By Dates (written and
printed) before using. Do not use if 3 months
after opening (written date) or if printed Use By
Date has passed.
Quality Control Testing
To assure you are getting accurate and
reliable results, TRUEresult twist 2 offers
two kinds of quality control tests. These
tests let you know that your TRUEresult
twist 2 System is working properly and
your testing technique is good.
Automatic Self-Test
An Automatic Self-Test ensures that
the Meter is working correctly.
1. Wash hands and dry thoroughly.
2. Remove one Test Strip from the
Test Strip vial and insert Test Strip
into the Meter.
3.
Meter turns on. The full Display
appears and is replaced by the
blinking Drop Symbol. The Meter
is working correctly and is ready to
perform a Control or blood test.
Do not use Meter if:
•
The full Display does not appear
(segments are missing),
•
The blinking Drop Symbol does not appear, or
•
An error message appears in the Display.
See Troubleshooting or call for assistance (see cover
of this Booklet for phone number).
15
Drop Symbol
Full Display
16
Control Test
The Control Test checks that the System is working
correctly and testing technique is good. Use ONLY
TRUEresult Control Solution to perform Control
Tests. Perform Control Tests:
•
For practice before using the System for the first
time,
•
When opening a new vial of Test Strips,
•
Occasionally as a vial of Test Strips is used,
•
If a Test Strip vial has been left opened or left in
extreme heat, cold, or humidity,
•
Whenever a check on performance of the System is
needed,
•
If results seem unusually high or low,
•
If Meter damage is suspected (Meter was dropped,
crushed, wet, etc.).
Performing Control Tests with more than one level
of Control Solution is recommended to ensure that
the System is working properly. Three levels of
TRUEresult Control Solution are available. Contact
place of purchase or use the number on the cover of
this Booklet for more information on how to obtain
different levels of Control Solution.
Ranges printed on Test Strip vial label are
for Control Test results only and are not
suggested levels for your blood glucose. Do
not drink Control Solution.
17
How to Test Control Solution
Use ONLY TRUEresult Control Solution
with the TRUEresult twist 2 Meter.
1. Check supplies. See Getting Started.
2. Allow Control Solution, vial of Test
Strips and Meter to adjust to room
temperature (20°C-25°C).
Note: Running a Control Test at
temperatures outside the range
listed above may cause Control
Solution to read as a blood test.
3. Wash hands. Dry thoroughly.
4.
Gently swirl or invert Control Solution
bottle to mix. DO NOT SHAKE!
5.
Remove one Test Strip from vial. Close
Test Strip vial immediately. Use Test
Strip quickly after removal from vial.
Note:
If Test Strip has been out of the vial
too long before testing, an error
message appears upon insertion
of the Test Strip into the Meter.
Discard old Test Strip. Use new
Test Strip for testing.
6. Insert Test Strip into Meter. Meter
turns on and shows blinking Drop
Symbol. Do not remove Test Strip.
Lift Up
To Open
Press Down
To Close
May 30, 2014
May 30, 2014
Contacts
Face Up
7. With cap removed, turn Control
Solution bottle upside down.
Gently squeeze one drop of Control
Solution onto a clean tissue. Wipe
off bottle tip with the tissue.
Note:
If Test Strip is removed before testing
is nished, an error message appears.
Discard old Test Strip. Use new Test
Strip for testing.
8.
Gently squeeze a drop of Control
Solution onto a small piece of
unused aluminum foil or clear
plastic wrap. Discard foil or plastic
wrap after use.
Note:
Do not put drop on top of the Test
Strip.
9.
With Test Strip still in Meter, touch
Sample Tip to top of the drop of
Control Solution. Allow drop to be
drawn into Test Strip. Remove Test
Strip from drop when dashes appear
across Meter Display. Meter is testing.
Note: If Meter does not begin testing soon after
drawing up sample, discard Test Strip.
Repeat test with new Test Strip. If problem
persists, see Troubleshooting.
10. After testing is finished, the result appears in the
Display.
18
Meter Testing
Drop Symbol
19
11.
Compare result to
Control Test Range
printed on Test
Strip vial label for
Control Solution
Level you are using.
If result is in range,
System can be used
for testing blood. If
result does not fall
within range, repeat
test using a new Test Strip.
If result is still outside range after a second
Control Test, System should not be used for
testing blood. Call for assistance (see cover for
phone number).
12.
After result is shown, discard Test
Strip in appropriate container.
Meter turns off. Recap Control
Solution bottle tightly.
Note:
Removing Test Strip before result displays cancels
the test. An error message appears and the result
is not stored in Memory. Retest with a new Test
Strip and do not remove before result is displayed.
Test Strip
Vial Label
Control Solution
Bottle Label
20
TESTING BLOOD
Obtaining a Blood Sample
Refer to lancing device’s Instructions for Use for
detailed instructions.
The lancing device is for single patient use ONLY.
For cleaning your lancing device see Lancing Device
Care in the lancing device’s Instructions for Use.
Wash your hands thoroughly with soap and warm
water after handling the Meter, lancing device,
or Test Strips. Contact with blood presents an
infection risk.
• NEVER share lancets or lancing device.
•
Lancets are for single use only. Do not reuse lancets.
•
To help prevent false high results, wash hands
before using the System to test blood, especially after
handling fruit or other foods containing sugar.
From Fingertip
1. Prepare fingertip by washing hands in warm,
soapy water. Rinse well. Dry thoroughly.
2. Place end of lancing device
equipped with lancet against tip
of finger. Lance fingertip.
3.
Set lancing device aside. To help blood drop
form, lower hand to waist level, gently massage
finger from palm to fingertip. Allow blood drop
to form before attempting to apply to Test Strip.
4.
Recap and remove used lancet from lancing device.
Discard used lancet into appropriate container.
Note:
Treat used Test Strips and lancets as a biological risk.
Dispose used Test Strips and lancets in approved container.
21
From Forearm
Note: Some lancing devices include a special end cap
for alternate site testing. Check lancing device’s
Instructions for Use.
1. Select area to be lanced. Wash with soap and warm water,
rinse and dry thoroughly.
2. Rub area vigorously or apply a warm dry compress to
increase blood ow.
3. Place end of lancing device equipped with lancet
rmly against forearm. Press Trigger Button.
Apply rm pressure on lancing device for 10
seconds. Allow blood drop to form before
attempting to apply to the Test Strip.
4. Recap and remove lancet from lancing device. Discard
used lancet into appropriate container.
Important Notes Regarding Forearm Testing
6
• Check with your Doctor or Healthcare Professional to see
if forearm testing is right for you.
• Results from forearm are not always the same as results
from ngertip.
• Use ngertip instead of forearm for more accurate results:
- Within 2 hours of eating, exercise, or taking insulin,
- If your blood sugar may be rising or falling rapidly
or your routine results are often uctuating,
- If you are ill or under stress,
- If your forearm test results do not match how you feel,
- If your blood sugar may be low or high,
- If you do not notice symptoms when blood sugar
is low or high.
How to Test Blood Glucose
1. Check supplies. See Getting Started.
2. Wash hands (and forearm for
alternate site testing). Rinse well and
dry thoroughly.
3.
Remove one Test Strip from vial.
Close vial immediately. Use Test
Strips quickly after removal from vial.
4.
With Meter off, insert Test Strip
Contact End (blocks facing up) into
Meter. Meter turns on. Keep Test
Strip in Meter until testing is finished.
---Alternate Site Testing---
To mark test as alternate site
(forearm) result, press Set Button.
Result is marked as alternate site in
Memory.
Note: If Test Strip has been out of the
vial too long before testing, an
error message appears upon
insertion of the Test Strip into the
Meter. Discard Test Strip. Use
new Test Strip for testing.
5. Lance fingertip or forearm. Allow
drop to form. (see Obtaining a Blood
Sample).
22
Lift Up
To Open
Press Down
To Close
6. With Test Strip still in Meter, touch
Sample Tip to top of blood drop
and allow blood to be drawn into
Test Strip. Remove from blood drop
immediately after the dashes appear
across Meter Display.
Note: If Meter does not begin testing soon after
touching blood drop to Sample Tip, discard
Test Strip. Repeat test with new Test Strip
and new blood drop. If problem persists, see
Troubleshooting.
7. After the test is nished,
result is displayed. Record
result in log book.
8. Discard Test Strip in the
appropriate container.
Note: Removing Test Strip before result
displays cancels the test. An error
message appears and result is not
stored in Memory. Retest with a
new Test Strip and do not remove
before result is displayed.
9. Meter turns off. Result is stored in Memory.
Note: Treat used Test Strips and lancets as a
biological risk. Dispose used Test Strips and
lancets in approved container.
23
24
Unusual Blood Glucose Test Results
If you have symptoms of low or high glucose, check
your blood glucose immediately. If your result does
not match the way you feel, repeat test. If your
results still do not match the way you feel, call your
Doctor or Healthcare Professional.
• Low blood glucose (hypoglycaemia) symptoms
may be trembling, sweating, intense hunger,
nervousness, weakness, and trouble speaking.
•
High blood glucose (hyperglycaemia) symptoms
may be intense thirst, a need to urinate often, a
dry mouth, vomiting and headache.
Meter reads blood glucose levels from
1.1-33.3 mmol/L (20-600 mg/dL).
If blood test result is less than
1.1 mmol/L (20 mg/dL), “Lo”
appears in Meter Display.
If blood test result is greater than
33.3 mmol/L (600 mg/dL), “HI”
appears in Meter Display.
ALWAYS repeat test to conrm Low (“Lo”) and
High (“HI”) results. If results still display “Lo” or
“HI”, call your Doctor or Healthcare Professional
immediately.
Note: “Lo” results are included in the Average as
1.1 mmol/L (20 mg/dL). “HI” results are
included as 33.3 mmol/L (600 mg/dL).
25
TRUEresult twist 2 System and Laboratory
Testing
The most accurate results come from using
fresh, capillary whole blood from the ngertip
or forearm. Venous whole blood collected into
sodium or lithium heparin blood collection
tubes may be used for testing by Healthcare
Professionals. Use of EDTA blood collection tubes
is not recommended and may cause low results.
Mix tube contents gently before using.
When comparing results between TRUEresult twist
2 and a laboratory system, perform a TRUEresult
twist 2 blood test within 30 minutes of laboratory
test. Diabetes experts have suggested that glucose
meters should agree within 0.83 mmol/L
(15 mg/dL) of a laboratory method when the
glucose concentration is less than 5.55 mmol/L
(100 mg/dL), and within 15% of a laboratory
method when the glucose concentration is
5.55 mmol/L (100 mg/dL) or higher.
7
If the
patient has recently eaten, ngerstick results from
the TRUEresult twist 2 System can be up to 3.9
mmol/L (70 mg/dL) higher than venous laboratory
results.
8
26
Time/Date Set Up
Note: If Meter turns off at any time
during Set Up, go back to Step #1
and begin again.
1.
Start with the Meter off. Press and hold the
Set Button until the full Display appears
and begins to blink. Release Set Button.
2. The time appears and the hour
begins flashing. Change the number
by pressing the Set Button until the
desired number appears.
Note: Pressing and releasing the Set
Button only makes the numbers
increase by one. Once the number
reaches its limit, it resets to the
lowest number.
Pressing and holding the Set Button scrolls
the numbers. Release Set Button when
desired number is reached.
3. After the correct number appears, the number
flashes 8 times before going to the minutes.
4. Repeat steps 2-4 to set up minutes, month, day
and year.
Minutes
Month Day Ye a r
x8
27
MEMORY
View Averages (7-, 14-, and 30-day)
Averages allows you to view the average of all
blood glucose results within a 7-, 14-, or 30 day
period.
1. With Meter off, press and release Set
Button.
2. Display scrolls through the 7-, 14-,
and 30-day Averages. Meter turns off
after 2 minutes if Set Button is not
pressed.
Note: If there are no average values, three dashes
are displayed for 7-, 14-, and 30-day
Averages.
7-Day 14-Day 30-Day
28
View Results
Memory holds 500 total blood and Control Test
results, which are displayed from most recent to
oldest. When Memory is full, the oldest
result is replaced with the newest result.
1. Press and release Set Button. Meter
turns on to view results in Memory
with the date and then the time in
the lower left..
The last result is shown first.
2.
Press and release Set Button again to
view most recent result in Memory
with the date and then the time in
the lower left.. Continue to press and
release Set Button to scroll through
results. Holding the Set Button
scrolls through the results quickly.
If there are no results in Memory,
dashes appear across the Display.
• Blood Test results are shown with the
Memory Symbol in the Display.
• Control Test results are shown with
“ -C- ” in the lower left, then the date
and the time, and the Memory Symbol
in the right.
• Alternate site Blood Test results are
shown with “-A- ” in the lower left,
then the date and the time, and the
Memory Symbol in the right.
29
CARE, CLEANING
Caring for TRUEresult twist 2
• Store System (Meter, Control Solution, Test
Strips) in Carrying Case to protect from liquids,
dust and dirt. Do not keep meter in an area
where it may be crushed (i.e. back pocket,
drawer, bottom of bag, etc.).
• Store in a dry place at 2°C-30°C
(room temperature).
• DO NOT REFRIGERATE
OR FREEZE.
Meter Care
Cleaning removes blood and soil.
To Clean the Meter:
• Clean the Meter when visibly dirty or if blood is
on the Meter.
• Never put Meter in liquids or allow any liquids to
enter the Test Port.
• Wipe Meter with a clean, lint-free cloth
dampened with 70% Isopropyl alcohol.
• Let Meter air dry thoroughly before using to test.
• Do not use bleach to clean the Meter.
For assistance call the phone number on the cover of
the Owner’s Booklet.
2°C
30°C
30
Control Solution Care
• Write date opened on Control Solution label.
Discard if either 3 months after opening or after
date printed next to on bottle label has passed,
whichever comes first.
• Store at 2°C-30°C (room temperature).
DO NOT REFRIGERATE
OR FREEZE.
• After use, wipe bottle tip clean and close tightly.
Test Strip Care
• Store Test Strips in original vial only. Do not
transfer old Test Strips to new vial or store Test
Strips outside of vial.
• Write date opened on Test Strip vial. Discard
unused Test Strips from vial if either 4 months
after opening or after date printed next to on
vial label has passed, whichever comes first. Use
of Test Strips past either date may give incorrect
results.
• Close vial immediately after removing Test Strip.
• Store in a dry place below
30°C (room temperature).
DO NOT REFRIGERATE
OR FREEZE.
• Do not reuse Test Strip. NEVER wipe Test Strips
with water, alcohol or any cleaner. DO NOT
attempt to clean and re-use Test Strips. Reuse of
Test Strips will cause inaccurate results.
• Do not bend, cut or alter Test Strips in any way.
2°C
30°C
1°C
30°C
Changing Battery
1. Remove Meter from top of test
strip vial by holding the vial
and twisting the Meter ¼ turn
counterclockwise. Lift Meter
from vial top.
2. Turn Meter over until the Meter
label is facing up. Pull Battery
Tray out until battery is exposed.
3. Holding the Battery Tray over
your hand, press on edge of
battery until battery drops out.
4. Insert new battery into Battery
Tray with “+” side facing up. Slide
Battery Tray back into Meter.
5. Turn Meter back over and press
Set Button to turn Meter on.
Note:
If Meter does not turn on, open Battery
Tray and check that the battery was
inserted “+” with the side facing up.
Close Battery Tray and repeat Step 5.
If Meter still does not turn on, call
phone number on the cover of the
Owner’s Booklet for assistance.
Batteries may explode if mishandled. Do
not dispose of battery in fire. Do not take
apart or attempt to recharge battery. Dispose
according to local regulations.
31
32
Action
Remove Test Strip.
Re-insert correctly.
Remove Test Strip. Re-insert
Test Strip fully into Meter.
Repeat with new Test Strip.
Replace battery.
Battery positive (“+”)
side must face up.
Call for assistance.
Action
Repeat test with new Test
Strip and larger drop.
Repeat test with new
Test Strip. Apply sample
within 2 minutes of
inserting Test Strip.
Repeat with new Test Strip.
Call for assistance.
Reason
Test Strip inserted upside
down or backwards
Test Strip not fully
inserted
Test Strip Error
Dead or no battery
Battery in backwards
Meter Error
Reason
Sample drop too small
Sample applied after
two minute shut-off
Problem with Test Strip
Problem with Meter
TROUBLESHOOTING
1) After inserting Test Strip, Meter does not turn on.
2) After applying sample, test does not start/
Meter does not begin testing.
For assistance, see cover for phone number.
33
Messages
Display
Reason
Meter
Error
Temperature
Error
•
Too Cold/
Too Hot
Sample Not
Detected or
Using Wrong
Test Strip
Used Test
Strip,
Test Strip
Outside of
Vial too Long
Meter
Error
Test Strip Error, Very
High Blood Glucose
Result (higher than 33.3
mmol/L (600 mg/dL).
Action
Call for
assistance.
Move Meter and Test Strips
to area between 10°C-40ºC;
wait 10 minutes for System
to reach room temperature
before testing.
Retest with new
Test Strip and
larger sample.
Repeat with new Test Strip.
Make sure sample is touched
to edge of Test Strip (not
top). If error persists,
call for assistance.
Call for
assistance.
Retest with new Test Strip. If error persists,
call for assistance. If you have symptoms such
as fatigue, excess urination, thirst, or blurry
vision follow your healthcare professionals
advice for high blood glucose.
34
Messages (continued)
If error message still appears, any other error message appears, or
troubleshooting does not solve the problem, call for assistance.
Display
Reason
Test Strip
Removed During
Test or Micro USB
Cable Attached
Meter
Error
Memory
Error
Low
Battery
Dead
Battery
Out of Range
-High Results
> 33.3 mmol/L
(600 mg/dL)
-Low Results
< 1.1 mmol/L
(20 mg/dL)
Action
Remove micro USB cable.
Retest with new Test Strip.
Make sure result is displayed
before removing Test Strip.
Call for assistance.
Result was not recorded in
Memory. Retest with a new
Test Strip. If error persists,
call for assistance.
About 50 tests can be
done before battery dies.
Change the battery.
Battery Symbol appears
before Meter turns off.
Change the battery.
Retest with new Test Strip.
If result is still “HI”
(High) or “Lo” (Low)
contact Doctor
immediately.
35
Performance Characteristics
5
Precision: Precision describes the variation between results. There
are two types of precision results measured, repeatability (using
blood) and intermediate precision (using control solution).
Repeatability: N=100
Mean (mmol/L) 2.6 4.9 7.3 11.4 18.4
Mean (mg/dL) 47 88 131 206 331
SD (mmol/L) 0.09 0.12 0.19 0.33 0.61
SD (mg/dL) 1.6 2.2 3.5 6.0 10.9
%CV 3.4 2.5 2.7 2.9 3.3
Intermediate Precision: N=100
Mean (mmol/L) 2.7 7.3 18.2
Mean (mg/dL) 49 131 328
SD (mmol/L) 0.06 0.14 0.76
SD (mg/dL) 1.1 2.5 13.7
%CV 2.3 1.9 4.2
System Accuracy: Diabetes experts have suggested that glucose
meters should agree within + 0.83 mmol/L (15 mg/dL) of the
medical laboratory values at glucose concentrations below
5.55 mmol/L (100 mg/dL) and within + 15% of the medical
laboratory values at glucose concentrations at or above
5.55 mmol/L (100 mg/dL). The tables below show how often
healthcare professionals (HCP) and users achieve these goals using
capillary fingertip and forearm blood samples when glucose results
are not fluctuating. The laboratory reference instrument is the
Yellow Springs Instrument (YSI) Model 2300.
36
For Healthcare Professionals
98.8% of TRUEresult twist 2 fingertip values performed by healthcare professionals (HCP) fell
within 0.83 mmol/L (15 mg/dL) of the YSI results at glucose levels < 5.55 mmol/L (100 mg/dL)
and within 15% at glucose levels > 5.55 mmol/L (100 mg/dL).
Fingertip Samples (HCP vs. YSI) for glucose concentrations < 5.55 mmol/L (100 mg/dL)
Within
+ 0.28 mmol/L (5 mg/dL)
Within
+ 0.56 mmol/L (10 mg/dL)
Within
+ 0.83 mmol/L (15 mg/dL)
53/180 (29%) 126/180 (70%) 176/180 (98%)
Fingertip Samples (HCP vs. YSI) for glucose concentrations > 5.55 mmol/L (100 mg/dL)
Within + 5% Within + 10% Within + 15%
255/420 (61%) 384/420 (91%) 417/420 (99%)
Fingertip Samples for glucose concentrations between 1.1-33.3 mmol/L (20-600 mg/dL)
Within + 0.83 mmol/L (15 mg/dL) or + 15%
593/600 (98.8%)
Forearm Samples (HCP vs. YSI) for glucose concentrations < 5.55 mmol/L (100 mg/dL)
Within
+ 0.28 mmol/L (5 mg/dL)
Within
+ 0.56 mmol/L (10 mg/dL)
Within
+ 0.83 mmol/L (15 mg/dL)
14/28 (50%) 24/28 (86%) 28/28 (100%)
Forearm Samples (HCP vs. YSI) for glucose concentrations > 5.55 mmol/L (100 mg/dL)
Within + 5% Within + 10% Within + 15%
42/72 (58%) 67/72 (93%) 71/72 (99%)
Parkes Error Grid: 100% of individual fingertip glucose measured values performed by healthcare
professionals fell within Zone A of the Parkes Error Grid (PEG).
99% of TRUEresult twist 2 forearm values performed by healthcare professionals (HCP) fell within
0.83 mmol/L (15 mg/dL) of the YSI results at glucose levels < 5.55 mmol/L (100 mg/dL) and
within 15% at glucose levels > 5.55 mmol/L (100 mg/dL).
Forearm Samples for glucose concentrations between 1.1-33.3 mmol/L (20-600 mg/dL)
Within + 0.83 mmol/L (15 mg/dL) or + 15%
99/100 (99%)
Parkes Error Grid: 100% of individual forearm glucose measured values performed by healthcare
professionals fell within Zone A of the Parkes Error Grid (PEG).
37
Venous Samples (HCP vs. YSI) for glucose concentrations < 5.55 mmol/L (100 mg/dL)
Within
+ 0.28 mmol/L (5 mg/dL)
Within
+ 0.56 mmol/L (10 mg/dL)
Within
+ 0.83 mmol/L (15 mg/dL)
15/68 (22.1%) 36/68 (52.9%) 62/68 (91.2%)
Venous Samples (HCP vs. YSI) for glucose concentrations > 5.55 mmol/L (100 mg/dL)
Within + 5% Within + 10% Within + 15%
130/222 (58.6%) 193/222 (86.9%) 218/222 (98.2%)
Venous Blood
96.6% of TRUEresult twist 2 venous values performed by healthcare professionals (HCP) fell
within 0.83 mmol/L (15 mg/dL) of the YSI results at glucose levels < 5.55 mmol/L (100 mg/dL)
and within 15% at glucose levels > 5.55 mmol/L (100 mg/dL).
Venous Samples for glucose concentrations between 1.1-33.3 mmol/L (20-600 mg/dL)
Within + 0.83 mmol/L (15 mg/dL) or + 15%
280/290 (96.6%)
Parkes Error Grid: 99% of individual venous glucose measured values performed by healthcare
professionals fell within Zone A and 1% fell within Zone B of the Parkes Error Grid (PEG).
For Consumers
100% of TRUEresult twist 2 fingertip values performed by users fell within 0.83 mmol/L
(15 mg/dL) of the YSI results at glucose levels < 5.55 mmol/L (100 mg/dL) and within 15% at
glucose levels > 5.55 mmol/L (100 mg/dL).
Fingertip Samples (User vs. YSI) for glucose concentrations < 5.55 mmol/L (100 mg/dL)
Within
+ 0.28 mmol/L (5 mg/dL)
Within
+ 0.56 mmol/L (10 mg/dL)
Within
+ 0.83 mmol/L (15 mg/dL)
6/23 (26%) 19/23 (83%) 23/23 (100%)
Fingertip Samples (User vs. YSI) for glucose concentrations > 5.55 mmol/L (100 mg/dL)
Within + 5% Within + 10% Within + 15%
36/77 (47%) 69/77 (90%) 77/77 (100%)
Fingertip Samples for glucose concentrations between 1.1-33.3 mmol/L (20-600 mg/dL)
Within + 0.83 mmol/L (15 mg/dL) or + 15%
100/100 (100%)
Parkes Error Grid: 100% of individual fingertip glucose measured values performed by users fell
within Zone A of the Parkes Error Grid (PEG).
38
Forearm Samples (User vs. YSI) for glucose concentrations < 5.55 mmol/L (100 mg/dL)
Within
+ 0.28 mmol/L (5 mg/dL)
Within
+ 0.56 mmol/L (10 mg/dL)
Within
+ 0.83 mmol/L (15 mg/dL)
15/28 (54%) 23/28 (82%) 28/28 (100%)
Forearm Samples (User vs. YSI) for glucose concentrations > 5.55 mmol/L (100 mg/dL)
Within + 5% Within + 10% Within + 15%
42/72 (58%) 65/72 (90%) 71/72 (99%)
99% of TRUEresult twist 2 forearm values performed by users fell within 0.83 mmol/L (15 mg/dL)
of the YSI results at glucose levels < 5.55 mmol/L (100 mg/dL) and within 15% at glucose levels
> 5.55 mmol/L (100 mg/dL).
Forearm Samples for glucose concentrations between 1.1-33.3 mmol/L (20-600 mg/dL)
Within + 0.83 mmol/L (15 mg/dL) or + 15%
99/100 (99%)
Parkes Error Grid: 100% of individual forearm glucose measured values performed by users fell
within Zone A of the Parkes Error Grid (PEG).
User Performance Evaluation: A study evaluating glucose values from fingertip capillary blood
samples obtained by 100 lay persons showed the following results:
100% within + 0,83 mmol/L (15 mg/dL) of the medical laboratory values at glucose concentrations
below 5.55 mmol/L (100 mg/dL) and 100% within + 15% of the medical laboratory values at
glucose concentrations at or above 5.55 mmol/L (100 mg/dL).
SYSTEM SPECIFICATIONS
Result Range: 1.1 - 33.3 mmol/L (20-600 mg/dL)
Sample Size: Minimum 0.5 microlitre (0.5 μL)
Sample: Fresh capillary whole blood, venous blood
drawn in sodium or lithium heparin blood
collection tubes, or Control Solution.
Test Time: Results in as little as 4 seconds
Result Value: Plasma equivalent values
Assay Method: Electrochemical
Power Supply: One 3V Lithium Battery
#CR2032 (non-rechargeable)
Battery Life: Approximately 1,500 tests or 2 years
Automatic shut-off: After two minutes of non-use
Weight: 17 grams
Size: 4.3 cm x 3.7 cm 2.3 cm
Memory Size: 500 glucose results
Operating Range (Meter & Test Strips):
Relative Humidity: 10-90% (Non-condensing)
Temperature: 10°C-40°C
Haematocrit: 20-55%
Altitude: 3094 metres
Note: Use within specified
environmental conditions only.
Chemical Composition
TRUEresult Test Strips: Glucose dehydrogenase-FAD
(Aspergillus sp.), Mediators, Buffers and Stabilisers.
TRUEresult Control Solution: Water, d-glucose,
buffers, viscosity enhancing agents, salts, dyes and
preservatives.
39
40
EMC Safety Information
This meter meets the electromagnetic immunity requirements
as per ISO 15197:2013 Annex A. It meets the electromagnetic
emissions requirements as per EN 61326 series. Interference
from the meter to other electronically driven equipment is
not anticipated. The electromagnetic environment should be
evaluated prior to operation of the device.
Do not use the meter in a very dry environment, especially
one in which synthetic materials are present. Do not use the
meter close to sources of strong electromagnetic radiation, as
these may interfere with the proper operation.
41
REFERENCES
1. Joslin Diabetes Center. Goals for Blood Glucose Control [Electronic
Version]. Retrieved February 16, 2012 from
http://www.joslin.org/info/Goals-for-Blood-Glucose-Control.html.
2. FDA Public Health Notification: Use of Fingerstick Devices on More
than One Person Poses Risk for Transmitting Blood Borne Pathogens:
Initial Communication Update 11/29/2010 [Electronic Version].
Retrieved February 22, 2012 from http://www.fda.gov/MedicalDevices/
Safety/AlertsandNotices/ucm224025.htm.
3. CDC Clinical Reminder: Use of Fingerstick Devices on More than one
Person Poses Risk for Transmitting Bloodborne Pathogens [Electronic
Version]. Retrieved February 22, 2012 from
http://www.cdc.gov/injectionsafety/Fingerstick-DevicesBGM.html.
4. Atkin, S.H., et. al. Fingerstick Glucose Determination in Shock. Annals
of Internal Medicine, 114:1020-1024 (1991).
5. Data on file.
6. U.S. Food and Drug Administration. Blood Glucose Meters, Getting
the Most Out of Your Meter. [Electronic Version]. Retrieved July
6, 2009: www.fda.gov/MedicalDevices/Safety/ AlertsandNotices/
TipsandArticlesonDeviceSafety/ucm109371.htm.
7. International Organization for Standardization. In vitro diagnostic
test systems. Requirements for blood-glucose monitoring system
for self-testing in managing diabetes mellitus. Reference number
ISO 15197:2013 (E). Geneva: International Organization for
Standardization; 2013.
8. Larsson-Cohn U: Difference between capillary and venous blood glucose
during oral glucose tolerance tests. Scand J Clin Lab Invest 36:805-808,
1976.
42
Notes:
43
Notes:
44
Q4INP03FD Rev. 1
Notes:
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