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Test Name

Glucose Tolerance Test, Postprandial/2-Hour

To view specimen requirements and codes please Select a regional laboratory.

Not sure which laboratory serves your office? Call us 866-MYQUEST (866-697-8378)

CPT Code(s)**

82947
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.

Methodology

Spectrophotometry (SP)

Limitations

Glucose levels may be depressed if sample is left on clot for an excessive length of time.

Reference Range(s)

<140 mg/dL

Clinical Significance

Postprandial glucose levels may be abnormally high in patients with gestational diabetes. If results are positive, and the patient is pregnant, a 3-hour oral glucose tolerance test should be performed for confirmation of gestational diabetes.

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.

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Glucose Tolerance Test, Postprandial/2-Hour
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