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From Brownfield, Texas, USA

My three year old son is always thirsty and is wetting his pull-up quite a bit. He will wake up during the night wanting something to drink. The doctor did a urine test which was normal, but now he wants to do a five-hour glucose test. Is this necessary? I am worried about my son, but I do not want to do unnecessary tests on him.


The answer to this question is a little complicated. Further testing may be necessary if your physician suspects that your child is at risk for diabetes. This is only done with a thorough history and physical examination. If you trust your physician, I would follow his advice. If he'd like to do a glucose tolerance test, it is a test that is exceedingly well tolerated with children and should pose no potential to harm your son. However, I would usually recommend doing repeated urine tests if I suspect early diabetes rather than a glucose tolerance test in a three year old.


[Editor's comment: Another approach is to do a fasting blood sugar, have your son eat a large breakfast, and then check another blood sugar two hours later. This avoids the long ordeal of a five-hour glucose tolerance test. See Classification and Diagnosis of Diabetes Guidelines. SS]

Original posting 29 Mar 2001
Posted to Diagnosis and Symptoms


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Last Updated: Tuesday April 06, 2010 15:09:20
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