nitrazine


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nitrazine

A chemical indicator used to determine pH, especially of vaginal secretions. It is often used in gynecological and obstetrical evaluations, e.g., to determine whether a pregnant woman has premature rupture of membranes with leaking amniotic fluid in the vaginal vault.
References in periodicals archive ?
The PROM tests segment has been categorized into nitrazine test, ferning test, pooling, ultrasound, fetal fibronectin test, biomarker, and others.
(7) Traditionally, minimally invasive gold standard for diagnosis of PROM relies on clinician's ability to document three clinical signs on sterile speculum examination: 1) Visual pooling of clear fluid in the posterior fornix of the vagina or leakage of the fluid from the cervical os; 2) An alkaline pH of the cervicovaginal discharge, which is typically demonstrated by nitrazine paper and/or 3) Microscopic ferning of the cervicovaginal discharge.
Strategies currently performed consist of sterile speculum examination and nitrazine or fern tests [14], while ultrasound is useful to identify an AF reduction in the case of suspect membrane rupture [15].
The diagnosis of PPROM is made by obtaining a history of leaking amniotic fluid, clinical assessment, including speculum examination, and laboratory tests such as nitrazine and fern tests.
CHICAGO -- The placental alpha-microglobulin-1 test is superior from a cost-benefit perspective to the combined traditional diagnostic test of pooling, nitrazine, and ferning for screening in the setting of questionable preterm premature rupture of membranes, Dr.
The physical exam should be delayed until irrigation reaches an endpoint of neutral pH, as measured with Nitrazine paper.
To verify the premature rupture of membranes in both groups, the speculum, fern, and nitrazine tests were done.
I prepared the equipment I needed for the three part assessment (pooling, Nitrazine, ferning).
This is important because a number of POC tests are not always recognized as "tests" by clinicians (eg, hemoccult, nitrazine pH, provider-performed microscopy).
Use nitrazine paper to assess the fluid collected from the posterior fornix for alkaline pH; this method has a positive predictive value (PPV) of 99% and negative predictive value (NPV) of 96%.
Nurse O'Connor performed a nitrazine test and confirmed the presence of amniotic fluid, a sign that the patient could have had premature rupture of membranes.
Cooper tested the cervical-vaginal washings of 52 women: 24 of them had PPROM as confirmed by pooling of vaginal fluid and a positive nitrazine strip test with ferning.