Ferning in amniotic fluid: Is it a useful indicator of ruptured membranes?

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Ferning in amniotic fluid: Is it a useful indicator of ruptured membranes?

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Title: Ferning in amniotic fluid: Is it a useful indicator of ruptured membranes?
Author: Gaddey, Heidi; Bailey, Justin; Smith, Rita
Date: 2011-12
Publisher: Family Physicians Inquiries Network
Citation: Journal of Family Practice, 60(12) 2011: 769+.
Abstract: The presence of arborized crystals (ferning) in amniotic fluid is both sensitive (74%-100%) and specific (77%-100%) for diagnosing rupture of membranes in laboring women who report loss of fluid (strength of recommendation [SOR]: A, multiple prospective cohort studies). However, it is much less sensitive and specific for women with fluid loss who aren't in labor (SOR: B, 1 prospective cohort study). Gross contamination of amniotic fluid with blood or antiseptic solutions may decrease the diagnostic accuracy of ferning, whereas contamination with meconium doesn't (SOR: C, bench research).
URI: http://hdl.handle.net/10355/12451

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