![]() |
Your doctor will suspect a fungal infection based on the appearance of the nails. The diagnosis can be confirmed by scraping the nail for a culture, or a microscopic examination to identify the type of fungus.
|
|
To make a diagnosis of onychomycosis, the clinician must collect a specimen of the nail in which infection is suspected. A clipping is taken from the nail plate, and a sample of the debris from underneath the nail bed is also taken, usually with a...
|
|
During a physical examination, a health care provider studies a patient's body to determine the presence or absence of physical problems. A typical physical examination includes: Inspection (looking at the body) Palpation (feeling the body with hands) Auscultation (listening to sounds) Percussion (producing sounds)
|
![]() |
The skin lesion KOH exam is a test to diagnose a fungal infection of the skin .
|
|
The KOH test takes its name from the chemical formula for potassium hydroxide (KOH), which is the substance used in the test. The test, which is also called a potassium hydroxide preparation, is done to rapidly diagnose fungal infections of the hair, skin, or nails.
|
|
The KOH (potassium hydroxide) test is the microscopic examination of a skin, nail, or hair sample for the presence of a fungus that infects these structures. The test takes its name from the chemical formula for potassium hydroxide (KOH), the substance used in the test to clear skin cells, protein, and cellular debris, making the fungi easier to observe.
|
|
|
Fungal (mycotic) cultures are microbiology laboratory tests to detect or rule out the presence of fungi (plural of fungus) in specimens taken from patients, animals, and the environment. The laboratory uses optimal conditions to grow and identify any fungus present in the specimen while attempting to eliminate or identify contaminants.
|