Collect	Grey (potassium oxalate/sodium fluoride)
	Transport	Refrigerated
	Minimum Volume	0.5 mL Plasma
	Remarks	2 tubes required. Draw fasting specimen, administer the glucola drink, and then draw the second tube 2 hours after completion of glucose drink. Label time of collection on each tube.
	Notes	Patient must be fasting. This test should be performed using a 75g glucose load.

82947 *The CPT codes provided are based on the AMA guidelines and for informational purposes