ferning การใช้

• During this window, ferning structures occur in cervical mucus as well as saliva.
• Ferning is usually detected beginning three days before ovulation, and continuing until ovulation has occurred.
• Saliva microscopes, when correctly used, can detect ferning structures in the saliva that precede ovulation.
• Cervical mucus can also make a pattern similar to ferning on a microscope slide, but it is usually patchy and with less branching.
• The saliva salt crystal formation is known as " ferning ", due to the visual similarity to a fern plant under the microscope as the saliva dries.
• The tear ferning test reveals abnormalities of the mucous component of the tear film, making it useful as a predictor of a person's tolerance of hydrophilic soft contact lenses.
• When the saliva of an about-to-ovulate woman dries, the salt leaves a crystal pattern called ferning _ it actually looks like a fern plant _ that can be seen under a microscope.