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Glucose Tolerance Test, Gestational, 4 Specimens (100g)
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)
**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.
Fasting, 1-Hour, 2-Hour, 3-Hour glucose
Glucose levels may be depressed if sample is left on clot for an excessive length of time.
|Glucose, Fasting||65-94 mg/dL|
|Glucose, 1-Hour||<180 mg/dL|
|Glucose, 2-Hour||<155 mg/dL|
|Glucose, 3-Hour||<140 mg/dL|
Plasma glucose levels may be abnormally high (hyperglycemia) or abnormally low (hypoglycemia). Glucose measurements are used in the diagnosis and treatment of carbohydrate metabolic disorders.
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.