GLUCOSE TOLERANCE, 3 HOURS, PLASMA
Marquette General Health System
HLAB/HOL Code |
GTT3 | |
MGH LIS Test No |
224 | |
Schedule |
Monday-Friday | |
Testing Time |
10 min | |
Testing Lab |
Marquette General Hospital | |
QORR Test Code |
GTT3 | |
Type |
1 Green Li Heparin PBT or 1 Grey Top Tube | |
Volume |
0.1 ml plasma | |
Temperature |
Refrigerate | |
Preservative |
||
Collection Info |
1. Refrigerate specimen after collection. 2. Have the patient drink 75 g of the glucose tolerance beverage (100 g for pregnant patients). Ingestion should be completed within 5 minutes. 3. Draw fasting specimen prior to start of test. Draw the additional specimens at 1 hour, 2 hours, and 3 hours after the ingestion of the glucose tolerance. NOTE: 1. Patient should be instructed to eat a high carbohydrate diet for 3 days prior to testing. 2. The patient should be screened with a 2-hour post prandial glucose test. Criteria for diagnosis of diabetes melitus are: Symptoms of diabetes and a casual plasma glucose >or = to 200 mg/dl (11 mmol/l). Casual is defined as any time of day without regard to time since last meal. The classic symptoms of diabetes include polyuria, polydipsia, and unexplained weight loss. Fasting plasma glucose > or = 126 mg/dl (7.0 mmol/l). Fasting is defined as no caloric intake for at least 8 hours. Two Hour plasma glucose >or= 200 mg/dl (11.1 mmol/l) during an OGTT. The test should be performed as described by the World Health Organization, using a glucose load containing the equivalent of 75 g anhydrous glucose dissolved in water. 3. Label specimens with the appropriate timed interval. |
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Clinical Utilities CPT Codes Reference Range
82591 82592 X 2
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.
NA
Component Information
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