55316-4

Yeast [Presence] in Sputum by KOH preparation

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Term 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
Source: Regenstrief LOINC

Part Descriptions

LP29134-1   Yeast
Fungi are eukaryotic microorganisms which manifest as yeasts, molds or a combination. Yeasts start as individual cells that reproduce by budding. Molds, which are long filaments or hyphae, grow by apical extension. Both yeasts and molds are heterotrophic and digest their food externally by absorptive nutrition. Taxonomically, yeast are characterized by their size and shape, the presence or absence of capsules, conidiogenesis (the process of daughter cell formation), presence of sexual spores, the formation of pseudo-and true hyphae and physiologic data. Species are differentiated based on the ability to assimilate and ferment carbon sources, and to utilize nitrate as nitrogen. Some opportunistic fungal pathogens found in humans are dimorphic. They grow as mycelium in nature and reproduce as yeast in the body. One example is Candida which can quickly transform from yeast to the hyphal phase in humans; this process helps it invade host tissue. [NCBI Books:NBK8125] Source: Regenstrief LOINC

LP6358-8   KOH preparation
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 fingal 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). Source: Regenstrief LOINC, PMID: 16766846

Fully-Specified Name

Component

Yeast

Property

PrThr

Time

Pt

System

Sputum

Scale

Ord

Method

KOH preparation

Additional Names

Short Name

Yeast Spt Ql KOH Prep

Display Name

Yeast KOH prep Ql (Sput)

Consumer Name Alpha Get Info

Sputum KOH test

Basic Attributes

Class

MICRO

Type

Laboratory

First Released

Version 2.27

Last Updated

Version 2.58

Change Reason

The PrThr property is used for LOINC terms whose results are reported using an ordered categorical scale, regardless of whether or not an internal threshold was used to make that determination. This change was approved by the Laboratory LOINC Committee in June 2016.

Order vs. Observation

Observation

Member of these Panels

Member of these Groups Get Info

Language Variants Get Info

Related Names

• ID
• Infectious Disease
• InfectiousDisease
• Lower respiratory
• Lung
• Microbiology
• Ordinal
• Point in time
• Potassium hydroxide preparation
• PR
• Prep
• Pulmonary
• Pulmonology
• Ql
• Qual
• Qualitative
• Random
• Respiratory
• Screen
• Spt
• Sputum

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Copyright © 2024 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2024, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.