**See Glucose Tolerance Tests.pdf for test protocol and interpretation.
Fluoride/oxalate is the preferred preservative if analysis is delayed more than one hour. Usual Adult Glucose Test Dose = 75 g glucose. The glucola must be consumed within a 5 minute interval; sipping water is permitted. Patients should be ambulatory and on a high carbohydrate diet for at least 3 days prior to the test. Patient must be fasting for 8 hours prior to start of the tolerance test.