DIURNAL VARIATIONS IN OESTROGEN EXCRETION IN PREGNANCY

Abstract
Summary: In 20 normal pregnant women the excretion of oestrogen and creatinine during four fractions of a 24‐hour period was determined. For each urine specimen the total oestrogen content, the oestrogen concentration, the total creatinine content and the oestrogen‐creatinine ratio were studied.A peak of oestrogen excretion was found in the first fraction. The oestrogen‐creatinine ratio of the second fraction was most closely correlated to the 24‐hour oestrogen‐creatinine ratio.

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