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Test Code 97645179 GTT Non-Gestational order set

Important Note

This protocol is for males and non-pregnant female adult patients only.  

For pediatric patients, please contact laboratory.

This protocol is approved by the American Diabetes Association for the Diagnosis and Classification of Diabetes Mellitus.

Performing Laboratory

Torrance Memorial Laboratories

Specimen Requirements

Submit the following specimens:

 

Submit only 1 of the following specimens:

 

Hospital Preferred Specimen Type: Plasma

Container/Tube: Lithium heparin gel

 

Outreach Preferred Specimen Type: Serum

Container/Tube: Serum gel

 

Patient instructions during testing:

1.  Patient must be fasting.

2.  Patient must remain in the test area during the test.  Must site quietly.

3.  Patient should not chew gum, smoke, or eat.

4.  Patient may sip water if thirsty.

5.  Tell patient to inform you if they feel week, dizzy, or have symptoms such as malaise or sweating.

 

Protocol Instructions

1.  Draw fasting sample.  Label with required information.  Write "fasting" on tube.

2.  Give patient 75 gram glucose loading dose (Glucola) to drink.

3.  Calculate the 2 hour timed draw from the time the patient finishes the glucola.

4.  Draw 2 hour sample on time.  Label with the required information.  Write "2 hour draw" on tube.

 

Processing personnel:

Order 2 hour non-gestational order set.  ORDER AS TIME COLLECTED.  DO NOT ORDER AS RECEIVED.  MUST GENERATE TWO DIFFERENT ACCESSION NUMBERS.

Specimen Transport Temperature

Ambient

 

Storage Temperature Stability

Room Temperature (preferred):  24 hours

Refrigerated:  24 hours

Methodology

Spectrophotometry

Reference Range

See Report

Day(s) Test Set Up/TAT

Outpatient:

Performed Monday through Friday only.  Prefer to begin tolerance before 9:00 am.

 

Inpatient:  

Contact lab

 

TAT:

Results available same day.

Aliases

Glucose Tolerance

CPT Code

82947, 82950