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3HR GLUCOSE TOLERANCE PANEL, 100 GRAM DOSAGE
Number 4642
CPT Code 
Alias GTT, G.T.T., 3 HOUR, 100 GRAMS
Specimen Container 3 Gray Tops
Specimen Type Plasma Sodium Fluoride
Turn Around Time 24-48 Hours
Days Performed Monday – Saturday
Reference Range Contact Laboratory
Alternate Specimen 
Volume 1 mL Plasma x 3
Stability Ambient 1 Day
Stability Refrigerated 7 Days
Stability Frozen N/A
Patient Preparation 

After collection of fasting specimen, patient is to consume 100 grams of glucola. Specimens are then collected at 1, 2 and 3 hour intervals.

Methodology 

Spectrophotometry

Limitations 
Rejection Criteria 
Additional Instructions 

Collect fasting specimen first. Collect subsequent specimens in 1 hour increments after consumption of glucola drink.

Performing Laboratory Primex
Tags3 HOUR GLUCOSE TOLERANCE TEST (100G)

COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

Read More