GLUCOSE TOLERANCE, 5 HR (GTT5)

Message
Patient should fast overnight.

Test Code
82544

Alias/See Also
GTT5

CPT Codes
82952 (x2)

Includes
Includes: fasting glucose; 1 hour glucose; 2 hour glucose; 3 hour glucose, 4 hour glucose; 5 hour glucose

Preferred Specimen
1 mL plasma for each timed specimen

Instructions
Specimen is collected prior to administration of 75 g oral glucose beverage (fasting) and then at 1, 2, 3, 4, and 5 hours after beverage is consumed by patient. Note: Dosage may be different for pediatric or pregnant patients. This dosage is for patients at least 17 years of age. Be sure to use the appropriate "timed" label for each representative sample.

Transport Container
Light green top

Transport Temperature
Refrigerated

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Fasting blood sugar (FBS) >200 mg/dL



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.