Question:
Five year old white male followed during the last year with fasting urine
glucose levels ranging from 100 mg/dl to 250 mg/dl. There is a
significant family history of diabetes (both sides of family) and the
child has recent history of polyuria and weight loss. However,
fasting blood glucose levels do not correlate to urine glucose levels
and are ususally high normal or slightly above normal (most recent was
99). Oral GTT 30 minute blood glucose peak was 252 mg/dl. Question?
Why is there no correlation of blood glucose to urine glucose and should
this child be evaluated for diabetes by an endocrinologist? Is this a
normal variance in renal threshold?
Answer:
This situation definitely needs further evaluation, by a pediatric
endocrinologist. Family history, and symptoms, and urine sugar positive, and
at least one high blood sugar, equals diabetes unless pediatric
endocrinologist says otherwise.
Original posting 21 Feb 96
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