|
|
Article: Answering your questions: water during glucose test, Retortamonas intestinalis, occult blood developers, and amylase and lipase. (Tips from the Clinical Experts).(Letter to the Editor)
- Article from:
- Medical Laboratory Observer
- Article date:
- June 1, 2003
- Author:
CopyrightCOPYRIGHT 2003 Nelson Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
|
Water during glucose tolerance test
Q: What is the current thinking about allowing a patient who is undergoing a three- or four-hour glucose tolerance test to have sips of water or ice chips? We used to allow the patient to have sips of water after the first-hour blood specimen was drawn. Can the patient have small sips of water at any point during the tolerance test after the 100 grams of glucose is taken?
A: Your question begs a larger one that challenges the usefulness of a glucose tolerance test (GTT) in the first place. In 1997, the criteria for the diagnosis of diabetes mellitus was revised to be based on a fasting (eight hour) glucose of >126mg/dL ...