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A 36-year-old member asked:

How much urine do doctors need to test for toxemia and how many times do they repeat the 24hour test?

2 doctor answers3 doctors weighed in
Dr. Leto Quarles
Family Medicine 23 years experience
24 hour urine test: 24-hr urine looks at the total amount of protein excreted in the urine throughout a 24-hr period. Amount is not important, 24-hr collection is. The test is often repeated weekly or sometimes even more often until delivery. The purpose of repeat testing is to balance timing of delivery - not too early for premature baby, not too late for serious risks to mother.
Dr. Nikolaos Zacharias
Maternal-Fetal Medicine 26 years experience
Depends.: 24-hour urine collection remains the gold standard in determining proteinuria for the purposes of preeclampsia diagnosis and monitoring. However recent studies suggest that spot urinalysis with protein/creatinine ratio is equally accurate and much more convenient. Your maternal-fetal medicine doctor may repeat your proteinuria determination 1-2 more times during the course of your pregnancy.

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Last updated Oct 3, 2016

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