Laboratory Services

Glucose Tolerance, 3 hr

Name: Incyte Diagnostics
Address: 13103 E Mansfield Ave, Spokane Valley, Washington, 99216, USA
Telephone: +1-If-you-have-questions-regarding-your-bill-or-would-like-to-make-a-payment,-please-visit-our-Billing-page-by-clicking-"Pay-Online"-at-the-top-of-the-page-For-other-inquiries,-please-call-us-at-509-892-2700

Updated Test Information:

Test Description	Glucose Tolerance, 3 hr
Test ID	GTT3H
Specimen Type	Serum
Alternate Specimen Type	Red, Li-heparin plasma, K2EDTA, NaF/Na2EDTA, KF/Na2EDTA, NaF/K‑Oxalate, SST
Specimen Requirements	GTT 1H GTT 2H GTT 3H GTT F
Specimen Collection / Processing Instructions	GTT 3H - Administer 100 g glucola. Do not mix with water unless directions on product label indicate to do so. The patient needs to be fasting for this tolerance test. During the test period, the patient should remain inactive and receive nothing by mouth including nicotine products. Small sips of water or ice is permissible. Draw 4 specimens. One at fasting, 1 hour, 2 hour, and 3 hour.
Minimum Sample Volume	1 mL
Pediatric Min. Volume (if applicable)	500 uL
Additional Processing Details	Plasma or serum samples without preservative (NaF) should be separated from the cells or clot within half an hour of being drawn.
Stability	8 hours at 15-25˚C 7 days at 2-8 ˚C Stability in fluoride plasma: 3 days at 15‑25 °C
Methodology	UV Enzymatic
Estimated TAT	0-2 days
Testing Schedule	Monday-Saturday
CPT Code(s)	82951 82952
Performing Lab	Incyte Diagnostics
LOINC Code(s)	20437-0