Microscopic observation [Identifier] in Skin by KOH preparation 644-5
LOINC Code
| LOINC code | 644-5 | ||
|---|---|---|---|
| name | Microscopic observation [Identifier] in Skin by KOH preparation | ||
| description | A KOH Preparation involves treating a specimen with KOH, a strong base that can make fungi and yeast more visible by partial dissolution of tissue cells, keratin, and other material. Fungal cells are resistant due to the high content of cellular chitin. KOH prep is generally a test for fungi, most often candida yeast, but others too, such as tinea capitis and other skin or nail fungal infections, even blastomycosis, etc. However, the KOH prep is also used to diagnose infections with mites (Demodex folliculorum in rosacea-like lesions and Sarcoptes scabiei in hyperkeratotic or crusted scabies) and sometimes even nematodes (in blue neck syndrome). [PMID:16766846] | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Observation | ||
| property | Prid = Presence or identity: Prid stands for “Presence or identity”, is used for assays that detect whether or not an analyte of a particular kind is present, and if it is, to identify the specific analyte. | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Skin | ||
| scale | Nom = Nominal: Nominal or categorical responses that do not have a natural ordering. (e.g., names of bacteria, reported as answers, categories of appearance that do not have a natural ordering, such as, yellow, clear, bloody. | ||
| method | KOH preparation | ||
Additional Names | |||
| short name | KOH Prep Skin | ||
Basic Attributes | |||
| class | MICRO | ||
| type | 1 Laboratory | ||
| order vs. observation | Both | ||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
| test rank | 8546 of 2000 most commonly performed tests by labs in USA | ||
| first released | |||
| last updated | 2.78 | ||
| last change type | NAM - change to Analyte/Component | ||
| change reason | Release 2.78: COMPONENT: Updated to seperate the component from the method; | ||
Related Names | |||
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