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Test Code GT3 GLUCOSE TOLERANCE, 3-HOUR (GESTATIONAL)

Important Note

Test must be scheduled in advance at the Ambulatory Care Center, Fanny Allen Medical Office Building, One Prospect Street, or Blair Park Williston. See Special Test considerations.

A significant number of patients experience a critically low serum glucose level following this procedure. Please encourage your patients to bring a snack for after the procedure. 

Additional Codes

Primary ID

Epic Code

Mayo Access ID

GT3

LAB2183 N/A

 

Specimen Information

Container

Specimen

Temperature

Collect Vol

Submit Vol

Minimum Vol

Stability
Grey Top Tube Plasma

Refrigerate

4 mL 1 mL 0.5 mL 3 days

 

Test Schedule / Analytical Time / Test Priority

Monday – Friday, by appointment only (847-5121) / 1 day / Not available STAT

Method

Colorimetric

CPT(s)

Description CPT Code
Glucose Tolerance additional specimen 82952
Glucose Tolerance 3 specimens 82951

 

Instrumentation

Ortho Vitros 5600

Reference Range

Age

Sex

Physiological
Status

Low

High

Units

All Female Fasting 50 95 mg/dL

All

Female

1-Hour Plasma Glucose

50

180

mg/dL

All Female 2-Hour Plasma Glucose 50 155 mg/dL
All Female 3-Hour Plasma Glucose 50 140 mg/dL

 

Section

Chemistry-1

Performing Location

University of Vermont Medical Center

Is the UVMMC lab NY State Certified to perform this testing?  Yes/No

Yes

LOINC Code Information

Result Code Reporting Name LOINC Code
GDOSE Glucose Tol, Dose 4269-7

G30

Gest Glucose Tol, Fasting 1558-6
G31 Gest Glucose Tol, 1 hr 20438-8
G32 Gest Glucose Tol, 2 hr 20436-2
G33 Gest Glucose Tol, 3 hr 20437-0