Brookes C, Shand K, Jones W R
Aust N Z J Obstet Gynaecol. 1986 Nov;26(4):260-4. doi: 10.1111/j.1479-828x.1986.tb01583.x.
The ferning test for the detection of amniotic fluid, when first described, was reported to have no false positive results. Despite this and after initial enthusiasm it has never achieved widespread use. The test is easy to perform but interpretation requires care, and it is necessary to identify potentially confusing crystallization patterns to avoid false positive results. A reevaluation of the test is presented and a hitherto unrecognized false positive reaction due to an antiseptic solution is reported.
用于检测羊水的羊齿状结晶试验在首次被描述时，据报道没有假阳性结果。尽管如此，在最初的热情过后，它从未得到广泛应用。该试验操作简便，但结果判读需要谨慎，必须识别可能造成混淆的结晶模式以避免假阳性结果。本文对该试验进行了重新评估，并报告了一种由防腐溶液导致的此前未被认识到的假阳性反应。
