Fluoride oxalate Fasting (0hr) and 2hr samples are collected. Clearly label the samples with 'F' for fasting and 2hr.

This is a fasting test. Patient is instructed to fast for 10 hours prior to test. 1. Collect fasting sample 2. Give 75g glucose drink to be consumed in 5 mins. 3. Patient must not eat, drink or smoke during the test duration (water is permitted) 4.Collect 2 hr sample at 2hrs post drink If patient vomits or is 15 minutes late, the test is cancelled and no 2hr blood sample is collected. LAB NOTES: Allocate the same laboratory number to both samples without covering the relative collection intervals written on the tubes. If no fluoride oxalate is received, but there is a serum-gel tube coinciding with the GTT collection times, providing this sample is within appropriate stability time (i.e. must be spun within 3 hrs of collection): Mark the sample as urgent, label with '+GLU', spin and hand deliver to the Core Biochemistry scientist. If the 2hr sample is not received because the test has been cancelled, register request as GTT. An appropriate comment is added to the GTT report.

As requested