NIPRO Diagnostics True Metrix Pro Manual page 30

Type of Blood Sample Information
Fresh, capillary whole blood from the fingertip or forearm is the recommended sample to be used for testing blood
glucose. Capillary forearm sampling must not be used when the blood glucose levels are rapidly changing (see Obtaining
a Capillary Forearm Blood Sample below). Venous blood samples may also be used for testing on the TRUE METRIX
Blood Glucose Monitoring System. If using venous blood for testing, careful consideration must be taken when collecting
and handling the venous sample (see Obtaining a Venous Blood Sample below). Follow the facility policy and procedure
for obtaining samples for testing blood glucose levels. Always wear clean gloves prior to testing to decrease risk of direct
contact with blood.
• Never use arterial or neonatal blood samples.
• Never use clotted blood, plasma or serum as a sample for testing on the meter.
How to Perform a Blood Glucose Test
The TRUE METRIX PRO is a no-coding system, which means the meter does not have to be coded to each lot of test strips.
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Use test strips quickly after removal from test strip vial. Test strips that have been left out of the vial too long will give an
error message. If error message displays, release and discard the old test strip and test with a new test strip.
1. To obtain a blood sample for blood glucose testing refer to your facility approved methods and our recommendations
listed in the table below. Follow the facility's established policy and procedure for handling blood and biohazard safety
(contaminated biological materials and sharps).
Note: A new pair of gloves should be worn before obtaining a blood sample. Contact with blood presents an infection risk.
Obtaining a Capillary Fingertip
Blood Sample
1. Wash hands and put on a new pair of
gloves.
2. Select subject's fingertip. Clean area with
soap and warm water, rinse or use an
approved disinfectant to clean the area.
Dry thoroughly.
Note: Do not squeeze the fingertip
for the blood sample.
This will damage the
surrounding tissues and
the fluid can dilute the
blood sample.
3. To help blood drop form,
lower the hand to a level
below the heart and gently massage the
finger from palm to fingertip.
4. Lance subject's fingertip.
5. Allow the blood drop to form before
attempting to apply the test strip.
6. Discard all biohazard materials into
appropriate container.
7. Wash hands after taking off gloves.
TRUE METRIX PRO System Comprehensive Resource Guide (GDH-FAD Enzyme)
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Blood Glucose Testing
Obtaining a Capillary Forearm
Blood Sample
Note: Results from the forearm are not
always the same as results from the finger-
tip. Use fingertip instead of forearm:
• Within 2 hours of eating, exercise, or
taking insulin.
• If the subject's blood glucose may be
rising or falling rapidly or their results
often fluctuate.
• If the subject is ill or under stress.
• If the glucose result may be low or high.
• If symptoms of low or high glucose levels
may not be evident.
1. Wash hands and put on a new pair of
gloves.
2. Select subject's forearm area. Clean area
with soap and warm water, rinse or use an
approved disinfectant to clean the area. Dry
thoroughly.
3. Rub area vigorously or apply a warm, dry
compress to increase blood flow.
4. Lance subject's forearm.
5. Allow the blood drop to form before
attempting to apply the test strip.
6. Discard all biohazard materials into
appropriate container.
7. Wash hands after taking off gloves.
Obtaining a Venous
Blood Sample
Note: Do not collect venous specimens from
the arm that has an active intravenous
infusion site. Do not collect samples from
5
an indwelling line that has an intravenous
infusion.
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1. Clean site for venipuncture with soap, water
or cleansing agent. Dry thoroughly.
2. Always collect sample into test tubes
containing only sodium heparin.
Note: Do not use, serum, clotted blood, or
plasma for testing on meter.
3. If using venous blood for testing on a
laboratory device, it must be used within
30 minutes of laboratory test. Mix well
before use.
Note: Do not use sodium fluoride blood collec-
tion tubes. This may cause a false low
glucose results.
Blood Glucose Testing 23
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