Glucose 2 Hour Post Dose

General Information

Lab Name

Glucose 2 Hr. Post Dose

Lab Code

GLUPP2

Epic Name

2h Glucose Tol Test, Non-Pregnant

Description

This test can be ordered as the 2-hour time point in the 2-hour oral glucose tolerance test recommended by the ADA for non-OB patients or as a 2-hour postprandial screen. For use as a part of the 2-h tolerance series, first a fasting glucose (GLUF) should be drawn; then the patient should drink 75 g glucola, and after two hours have a specimen drawn for GLUPP2. A 2-hr blood glucose concentration equal to or greater than 200 mg/dL is consistent with a diagnosis of diabetes. Diabetes Care 2012 35: S11-S63

Synonyms

glucose tolerance

Components

Code	Name
GLUDOS	Glucose Tolerance Dose Info
GTBGLU	Glucose, BLD
PP2INF	Glucose 2 Hr. Post Interp

Interpretation

Method: Spectrophotometric
Reference Range: See individual components

Ordering & Collection

Specimen Type: Blood
Collection: All Locations:
Preferred: 2 mL blood in GRAY TOP tube
Also Acceptable: 4 mL blood in ORANGE RST, LIME GREEN PST, GOLD SST, RED TOP or GREEN TOP tube
Note: Deliver to lab immediately
Quantity: Requested: 1 mL plasma
Minimum: 0.3 mL plasma

Processing

Receiving Instructions: Refrigerate plasma
Use this order mnemonic for any Glucose commented as " 2 hour post or "2 hour post prandial"
At Login, enter glucose dose (ex: 50 g; 75 g, 100 g, HR2PP [for Two hour post prandial]) when information is available, otherwise enter coded comment INP

Note: Plasma or serum collected in green, gold or red top tubes should be separated from the cells within 1 hr. and stored refrigerated. Glucose in such specimens is stable up to 16 hr. after collection. Glucose specimens collected in gray top tubes are stable up to 24 hr. without separation or refrigeration.

Misc Sendout

Performance

Lab Department

Chemistry, Automated Panels(CHA)

Frequency

Glucose testing performed Daily. Administration of glucola to patients is performed by Lab Medicine Monday-Friday only.

Available STAT?

Yes

Performing Location(s)

HMC	Chemistry, Automated 206-520-4600 325 9th Ave, Rm # GWH-47, Seattle, WA 98104-2420
UW-NW	Main Lab 206-668-1344 UW Medical Center – Northwest 1550 N 115th Street, A200 Seattle, WA 98133
FHCC	Fred Hutch Alliance Lab 206-606-1088 825 Eastlake Ave, Seattle, WA 98109
UW-MT	Chemistry, Automated 206-520-4600 Clinical Lab, Room NW220, University of Washington Medical Center, 1959 NE Pacific street, Seattle, WA 98195

Billing & Coding

CPT Codes: 82950
LOINC: 1521-4