These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Urinary estrogens during late pregnancy: observations on the validity of "24-hour" urine collections and the estrogen/creatinine ratio.
    Author: Wood GP.
    Journal: South Med J; 1977 Aug; 70(8):959-62. PubMed ID: 887982.
    Abstract:
    The determination of estriol content of the maternal urine in late pregnancy has gained widespread use as a means of assessing the fetoplacental unit. Major drawbacks have included the time lag in obtaining a 24-hour urine collection and obtaining an accurate 24-hour collection. To overcome these problems, it has been suggested that the estrogen/creatinine (E/C) ratio of incomplete collections or even random urine specimens might provide adequate information. Our analysis of these E/C ratio technics, as compared to accurate 24-hour urine estrogen values and fetal outcome, shows the E/C ratio to be less reliable and occasionally misleading.
    [Abstract] [Full Text] [Related] [New Search]