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Test Code SOFT: GT5H Glucose Tolerance, 5 Hour, Plasma

Important Note

Glucose Tolerance, 5 hour, is a scheduled test. To schedule an appointment call Saint Francis Campus, Infusion Center at 573-331-5853

Additional Codes

Ordering Mnemonic
EPIC NAME: GLUCOSE TOLERANCE 5 HOUR

 EPIC CODE: LAB167

 

Performing Laboratory

Saint Francis Medical Center-Chemistry

Specimen Requirements

Specimen Type: Plasma

Container/Tube: Grey top (potassium oxalate/sodium fluoride) tubes

Specimen Volume: 1 mL for each timed interval

Collection Instructions:

1. Patient should have nothing to eat or drink for at least 8 hours before test (except for sips of water). Patient remains fasting including no smoking, chewing gum, or Lifesavers.

2. Draw fasting blood specimen.

3. Give 75 g of chilled Glucola orally before drawing remaining specimens.
4. Draw blood specimens after 1/2 hour, 1 hour, 2 hours, 3 hours, 4 hours, and 5 hours.

5. Label specimens with corresponding draw time and interval.

Specimen Transport Temperature

Ambient

Reference Values

To be interpreted by physician

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82951

Methodology

Enzymatic

A glucose fasting specimen on patients for a glucose tolerance test will be run first before administration of Glucola. If fasting glucose is >140 g/dL, Glucola will not be given and the tolerance test will not be performed.