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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Glucose In Urine During Pregnancy?

A pregnant women in her third trimester is seen at the physicials office. Her urine glucose = 250 mg/dL. Would this concern you? Why might there be glucose in her urine? What test would you do to follow up on this patient? What might her diagnosis be?
Wed, 10 Jun 2015
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General & Family Physician,  's  Response
Urine glucose of 250mg/dl isquite above the normal range. She needs to meet an obstetrician to get her blood sugar levels tested and also to assess the fetal growth and well being which inturn would mandate an ultrasound examination of fetus and amniotic fluid index. Naturally in Preganancy, the renal handling of glucose is a bit altered wherein even at normal blood levels of glucose there might be some amount of glucose in the urine . This is called renal Glycosuria. But 250mg/dl is something more and not normal. Therefore the doctor needs to rule out a Gestational diabetes Mellitus (GDM). Inorder to confirm this, we need to check her fasting blood glucose level and 2 hours post breakfast blood glucose levels. Depensing on the results, the patient may be given a trial of diet modification or else Insulin. Recent advances have also approved the use of certain tablets but this depends on your doctor's decision on individual patients. Hope this clarifies your question.

Dr. Jeffrey
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What Causes Glucose In Urine During Pregnancy?

Urine glucose of 250mg/dl isquite above the normal range. She needs to meet an obstetrician to get her blood sugar levels tested and also to assess the fetal growth and well being which inturn would mandate an ultrasound examination of fetus and amniotic fluid index. Naturally in Preganancy, the renal handling of glucose is a bit altered wherein even at normal blood levels of glucose there might be some amount of glucose in the urine . This is called renal Glycosuria. But 250mg/dl is something more and not normal. Therefore the doctor needs to rule out a Gestational diabetes Mellitus (GDM). Inorder to confirm this, we need to check her fasting blood glucose level and 2 hours post breakfast blood glucose levels. Depensing on the results, the patient may be given a trial of diet modification or else Insulin. Recent advances have also approved the use of certain tablets but this depends on your doctor s decision on individual patients. Hope this clarifies your question. Dr. Jeffrey