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KOH test on a vaginal wet mount, showing slings of pseudohyphae of Candida albicans surrounded by round vaginal epithelial cells, conferring a diagnosis of candidal vulvovaginitis. The KOH test , also known as a potassium hydroxide preparation or KOH prep , is a quick, inexpensive fungal test to differentiate dermatophytes and Candida albicans ...
Vaginal wet mount showing slings of pseudohyphae of Candida albicans surrounded by round vaginal epithelial cells, conferring a diagnosis of candidal vulvovaginitis.. A vaginal wet mount (or vaginal smear [1] or wet prep [2]) is a gynecologic test wherein a sample of vaginal discharge is observed by wet mount microscopy by placing the specimen on a glass slide and mixing with a salt solution. [1]
Positive fern test with amniotic fluid as seen under the microscope. The fern test is a medical laboratory test used in obstetrics and gynecology.The name refers to the detection of a characteristic "fern like" pattern of vaginal secretions when a specimen is allowed to dry on a glass slide and is viewed under a low-power microscope.
A Ziehl–Neelsen stain is an acid-fast stain used to stain species of Mycobacterium tuberculosis that do not stain with the standard laboratory staining procedures such as Gram staining. This stain is performed through the use of both red coloured carbol fuchsin that stains the bacteria and a counter stain such as methylene blue.
In analytical chemistry, the hydroxyl value is defined as the number of milligrams of potassium hydroxide (KOH) required to neutralize the acetic acid taken up on acetylation of one gram of a chemical substance that contains free hydroxyl groups.
It is used in wet-mount preparations for visualization of fungal structures, especially in medical mycology. [1] Methyl blue stains fungal cell walls a bright cerulean color, while lactophenol acts as a mountant.
The study saw that out of 150 patients CFW showed positive in 95 of them. The study also reviewed key advantages for using the Calcofluor-White stain over KOH. It discussed that CFW requires a quick screening time as it can be seen on low power objectives and can be done within a minute while KOH requires about 3–4 minutes for each slide.
A Trans Mediterranean Airways C-54A (OD-AEB) crashed in the Koh-i-Safid Mountains (93 km (58 mi) west of Ghazni, Afghanistan due to a navigation error, killing the three crew; wreckage was found on 16 August 1964. The crew had incorrectly estimated wind speed and direction and this blew the aircraft off course by 42 miles. [145] 6 February 1964