Blood Tests for Diabetes Diagnosis: Glucose Challenge
Also known as: GCT; 50 gram glucose challenge; one-hour glucose screening test.
What is it? A screening test that measures blood glucose levels one hour after 50 grams of a glucose solution has been consumed (an extremely sweet drink). If the GCT is elevated, it indicates the need for further testing.
Why is this test performed? To screen for gestational diabetes in pregnant women considered "at risk."
How frequently should this test be performed? Once. If results are abnormal and glucose levels elevated, it should be followed up by a 3-hour oral glucose tolerance test (OGTT).
What is the "normal" range for results? Normal values are 140 mg/dl or less.
What do abnormal results mean? A glucose threshold value >140 mg/dl (7.8 mmol/l) means that gestational diabetes is a possibility and an OGTT is indicated.
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I hate to even suggest this, but what if the cure never comes? What if long-term clinical human trials go on indefinitely into the future with no hope in sight? What if cinnamon is just cinnamon? What if cactus juice is just cactus juice and reptile saliva just reptile saliva? And what if the BCG drug is a vaccine for tuberculosis and nothing more? I have this terrible feeling I’ll be an old man with a long grey wizard’s beard and a walking cane made out of...