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Glucose, 2 Hour Post Prandial
Test Code1235300020
Alias/See Also
GLU2
CPT Codes
82950
Preferred Specimen
Plasma collected in a green-top lithium heparin plasma separator tube (PST)
Patient Preparation
Overnight, 8 hour fast required if the provider has ordered a fasting glucose.
Minimum Volume
0.5 mL
Other Acceptable Specimens
Serum collected in a gold-top serum separator tube (SST)
Serum collected in a red-top no additive no-gel tube and transferred to a plastic vial
Serum collected in a red-top no additive no-gel tube and transferred to a plastic vial
Instructions
1. If one is ordered, obtain a fasting blood glucose 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.
3. If glucose (glucola) is ordered, 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 less than 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, contact attending physician and the pathologist. The pathologist will contact the attending physician if the testing should continue.
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4. As specified by the provider either administer glucose solution (glucola) or direct the patient to eat a meal.
A. Glucose Solution (glucola): Adults - orally administer 75 grams of glucose (1 bottle) within 5 minutes.
B. Children should be given 1.75 grams per kilogram of body weight or use a Dextol Calculator for Glucose Tolerance Test Dosage to determine dosage.
C. Meal: Patient should eat a normal breakfast or lunch within 15-20 minutes.
5. Collect a single post-prandial glucose specimen 2 hours after ingesting glucose solution or after patient began eating.
6. Clearly label specimens with the hour the sample was collected (fasting, 1 hour, or 2 hour 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.
3. If glucose (glucola) is ordered, 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 less than 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, contact attending physician and the pathologist. The pathologist will contact the attending physician if the testing should continue.
*******************************************
4. As specified by the provider either administer glucose solution (glucola) or direct the patient to eat a meal.
A. Glucose Solution (glucola): Adults - orally administer 75 grams of glucose (1 bottle) within 5 minutes.
B. Children should be given 1.75 grams per kilogram of body weight or use a Dextol Calculator for Glucose Tolerance Test Dosage to determine dosage.
C. Meal: Patient should eat a normal breakfast or lunch within 15-20 minutes.
5. Collect a single post-prandial glucose specimen 2 hours after ingesting glucose solution or after patient began eating.
6. Clearly label specimens with the hour the sample was collected (fasting, 1 hour, or 2 hour specimen).
Transport Temperature
Refrigerated
Performing Laboratory
Guthrie Clinic Lab
Corning Hospital Lab
Troy Hospital Lab
GMG Laboratory at Towanda
Cortland Medical Center Lab
