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Limitations of the Procedure SECTION 7
1. PRESERVATIVES:
• Fluoride – Do not use fluoride as a preservative for blood specimens.
• Iodoacetic acid – Do not use iodoacetic acid as a preservative for blood specimens.
2. ARTERIAL SPECIMEN: Arterial specimens with pO
2
of >200 mmHg had a small bias
(average of –6%) on the Ascensia E
LITE™ in comparison to the laboratory method
glucose results. The reference range for arterial pO
2
is 80 to 110 mmHg (11.04 to
14.36 kPa).
3. NEONATAL USE: This Ascensia ELITE™ Blood Glucose Meter is not qualified for testing
neonatal blood specimens.
4. METABOLITES: Reducing substances such as ascorbic acid and uric acid at normal blood
concentrations do not significantly affect Ascensia E
LITE Blood Glucose Test results.
5. HEMATOCRIT: At normal glucose levels, Ascensia E
LITE Test Strip results are not
significantly affected by hematocrits in the range of 20% to 60%. At glucose levels
above 300 mg/dL (16.7 mmol/L), hematocrit levels above 55% will cause lowered results.
6. LIPEMIC SPECIMEN: Cholesterol up to 500 mg/dL (13.0 mmol/L) or triglycerides
up to 3000 mg/dL (33.9 mmol/L) do not significantly affect the results. Glucose val-
ues however, in specimens beyond these levels should be interpreted with caution.
CONTRAINDICATION: Fingerstick blood glucose testing may not be clinically appropriate when
peripheral blood flow is decreased. Shock, severe hypotension, hyperosmolar hyperglycemia
and occurrence of severe dehydration are examples of clinical conditions which may adversely
affect the measurement of glucose in peripheral blood.
1
1
Atkin S, Jaker MA, Chorost MI, Reddy S, Fingerstick Glucose Determination in Shock. Annals of Internal Medicine 1991, 114: 1020–24.