Laboratory Medicine

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Glucose Tolerance Test, 3hrs Non-Pregnant
Test Name Glucose Tolerance Test, 3hrs Non-Pregnant
Specimen Type / Requirements Container Type = Grey Top Minimum Testing Volume = 3ml Serum Tube must fill to at least ½ or greater of its vacuum capacity
Specimen Handling Collection Instructions: Collect sample in Grey top Container, free from hemolysis. Patient must be fasting for at least 12 hours. 1st Fasting blood specimen is taken, Patient given 75g glucose drink soon after, 2nd blood specimen is drawn 1hr post consumption, 3rd blood is drawn at 2hr post consumption, and 4th blood specimen is drawn 3hrs post consumptions). Write your initials, date and time of collection on the collection label. Stability: Stable at room temperature for 8 hours and 3 days refrigerated at 2-8°C. Transportation: Transport at room temperature ASAP. Laboratory Staff Instructions: Spin sample as soon as possible. Sample Rejection Criteria: Grossly hemolyzed samples, inlabelled or Not Sufficient Quantity samples will be rejected
Required Documentation
Turnaround Time (TAT) 1 Hour	Test Utilization Routine
Reference Value See Interpreted report.
Test Code GTT3	Methodology Spectrophotometric (Hexokinase method)
Testing Location SMH-Biochemistry	Other Information Last Updated: June 06, 2019

Glucose Tolerance Test, 3hrs Non-Pregnant

Test Name

Glucose Tolerance Test, 3hrs Non-Pregnant

Specimen Type / Requirements

Container Type = Grey Top

Minimum Testing Volume = 3ml Serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions:

Collect sample in Grey top Container, free from hemolysis. Patient must be fasting for at least 12 hours. 1st Fasting blood specimen is taken, Patient given 75g glucose drink soon after, 2nd blood specimen is drawn 1hr post consumption, 3rd blood is drawn at 2hr post consumption, and 4th blood specimen is drawn 3hrs post consumptions).

Write your initials, date and time of collection on the collection label.

Stability: Stable at room temperature for 8 hours and 3 days refrigerated at 2-8°C.

Transportation: Transport at room temperature ASAP.

Laboratory Staff Instructions: Spin sample as soon as possible.

Sample Rejection Criteria: Grossly hemolyzed samples, inlabelled or Not Sufficient Quantity samples will be rejected

Required Documentation

Turnaround Time (TAT)

1 Hour

Test Utilization

Routine

Reference Value

See Interpreted report.

Test Code

GTT3

Methodology

Spectrophotometric (Hexokinase method)

Testing Location

SMH-Biochemistry

Other Information

Last Updated: June 06, 2019