What is Ferning on microscopy?
The arborization pattern found when a drop of amniotic fluid is allowed to air dry on a microscope slide, known as ferning.
What is fern test used for?
The fern test is used to aid the physician in the diagnosis of ruptured membranes by detecting the presence of amniotic fluid. This fluid, when placed on a glass slide, is allowed to dry.
What is fern like pattern?
ferning. [fern´ing] the appearance of a fernlike pattern in a dried specimen of cervical mucus, an indication of the presence of estrogen, usually seen at the midpoint of the menstrual cycle; it can be helpful in the determination of ovulation. The same phenomenon occurs with premature rupture of the fetal membranes.
What is Ferning in histopathology?
[fern´ing] the appearance of a fernlike pattern in a dried specimen of cervical mucus, an indication of the presence of estrogen, usually seen at the midpoint of the menstrual cycle; it can be helpful in the determination of ovulation. The same phenomenon occurs with premature rupture of the fetal membranes.
How accurate is ferning test?
Results: Salivary ferning test by KNOWHEN ovulation microscope is accurate method of detecting ovulation. Its accuracy was 86.5%. Conclusions: Salivary ferning test is a reliable test to detect fertile period of menstrual cycle.
How do you test a fern for saliva?
In this test, you get a small microscope with built-in or removable slides. You put some of your saliva on a glass slide, allow it to dry, and look at the pattern it makes. You will see dots and circles, a fern (full or partial), or a combination depending on where you are in your monthly cycle.
What is fern phenomenon?
Abstract. In 1945 Papanicolaou1 discovered the interesting phenomenon that cervical mucus spread on a slide and left to dry crystallized with “arborization,” a fern- or palm leaf-like reaction. He considered this phenomenon chracteristic of the time of ovulation.
How long after Ferning does ovulation occur?
compared several methods to ultrasonography‐detected ovulation and found that positive salivary ferning test correlated to −1 to +1 days of actual ovulation in 42% of cases.