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Glucose Tolerance Gestational Fasting
Test Code1235301465
Alias/See Also
FSTGGT
Preferred Specimen
Plasma collected in a green-top lithium heparin plasma separator tube (PST)
Patient Preparation
Overnight, 8 hour fast is required.
During the test the patient may drink water only. Smoking and eating are prohibited. The patient must remain in the office for the duration of the test.
Minimum Volume
0.5 mL
Other Acceptable Specimens
Serum collected in a gold-top serum separator tube (SST)
Instructions
1. Obtain a fasting blood specimen.
2. Verify the patient’s fasting blood glucose result by obtaining a drop of whole blood from the Lithium Heparin PST tube or from a finger stick. Test the fasting glucose level using a glucose meter. Proceed as follows.
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A. Glucose between 50-120 mg/dl, proceed with the test.
B. Glucose between 120-150 mg/dl, contact attending physician to confirm orders. Document verbal request.
C. Glucose greater than 150 mg/dl or less than 50 mg/dl, contact attending physician and the pathologist. The pathologist contacts the attending physician if the testing should continue.
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3. Immediately thereafter, orally administer 100 grams of glucose (glucola) making certain to check the expiration date; if expired, reschedule the test.
4. Specimens are obtained 1 hour, 2 hours and 3 hours later.
2. Verify the patient’s fasting blood glucose result by obtaining a drop of whole blood from the Lithium Heparin PST tube or from a finger stick. Test the fasting glucose level using a glucose meter. Proceed as follows.
****************************************
A. Glucose between 50-120 mg/dl, proceed with the test.
B. Glucose between 120-150 mg/dl, contact attending physician to confirm orders. Document verbal request.
C. Glucose greater than 150 mg/dl or less than 50 mg/dl, contact attending physician and the pathologist. The pathologist contacts the attending physician if the testing should continue.
*******************************************
3. Immediately thereafter, orally administer 100 grams of glucose (glucola) making certain to check the expiration date; if expired, reschedule the test.
4. Specimens are obtained 1 hour, 2 hours and 3 hours later.
Transport Temperature
Refrigerated
Performing Laboratory
Guthrie Clinic Lab
Corning Hospital Lab
Troy Hospital Lab
GMG Laboratory at Towanda
Cortland Medical Center Lab
