Glucose Tolerance Test-Additional Specimens, Plasma

Glucose Tolerance Test-Additional Specimens

Order Code:	GT05
Epic Lab Code:	LAB4923
Order Form:	A-1a General Lab or Epic Req

Chemistry
6240 RCP
356-3527

Specimen:

Plasma

Collection Medium:

Gray top tube (Fluoride)

Alternate Collection Media:

Call laboratory for additional acceptable specimen collection containers.

Minimum:

3 mL whole blood for extra specimen (added to GTT series)

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Analytic Time:

1 hour (upon receipt in laboratory)

Comments:

CPT code = 82947

Test Limitations:

Icterus: No significant interference up to an I index of 60 (approximate conjugated and unconjugated bilirubin concentration: 60 mg/dL). Hemolysis: No significant interference up to an H index of 1000 (approximate hemoglobin concentration 1000 mg/dL). Lipemia (Intralipid): No significant interference up to an L index of 1000 (approximate triglycerides concentration 2000 mg/dL). There is poor correlation between turbidity and triglycerides concentration.

Methodology:

Hexokinase/UV Test

CPT Code:

See comments