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The hair perforation test, also known as an in vitro hair perforation test, is a laboratory test used to help distinguish the isolates of dermatophytes, such as Trichophyton mentagrophytes and its variants. [1] The test is performed by placing an organism into a Petri dish containing water, yeast extract, and hair. After incubation for 4 week ...
Microsporum canis produces infections of scalp and body sites, creating highly inflammatory lesions associated with hair loss. [3] Infection by this species can often be detected clinically using Wood's lamp , which causes infected tissues to fluoresce bright green [ 4 ] [ 9 ] Fluorescence is attributed to metabolite pteridine , which is ...
A skin test is a medical test in which a substance ... Casoni test; Corneometry; Dick test; Fernandez reaction; Frei test; Hair perforation test; Kveim test ...
Results are usually available while the patient waits or the next day if sent to a clinical laboratory. The KOH test procedure may be performed by a physician, nurse practitioner, physician associate, medical assistant, nurse, midwife [3] or medical laboratory technician. If fungal cultures are required, the test is performed by a technologist ...
A laboratory specimen is sometimes a biological specimen of a medical patient's tissue, fluids, or other samples used for laboratory analysis to assist in differential diagnosis or staging of a disease process. These specimens are often the most reliable method of diagnosis, depending on the ailment.
Microsporum gypseum is a soil-associated dermatophyte that occasionally is known to colonise and infect the upper dead layers of the skin of mammals. [1] The name refers to an asexual "form-taxon" that has been associated with four related biological species of fungi: the pathogenic taxa Arthroderma incurvatum, A. gypsea, A. fulva and the non-pathogenic saprotroph A. corniculata.
Hair testing is an increasingly common method of assessment in substance misuse, particularly in legal proceedings, or in any situation where a subject may have decided not to tell the entire truth about his or her substance-using history.
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