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Yeast Colony Color, Wound/Skin, Drainage/Abscess, Incision/Scar, Lesion/Tissue — Culture

Published: August 9, 2026Updated: August 17, 2026

A culture test that grows yeast from a skin or wound-related sample and records colony color to help identify the organism.

Quick summary

["Colony color can help narrow the type of yeast found, but additional testing may be needed for definitive identification."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
98406-2
Short code
Yeast colony w SDA Islt Cult-Color
Synonyms
Yeast colony w SDA Islt Cult-Color
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
10
Ref high
40
Critical range
— – 500 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
culture
CPT
84484
SNOMED
302774002
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

This test is used to detect and help identify yeast growing from samples such as skin, wounds, drainage, abscesses, incisions, scars, lesions, or tissue. The laboratory records the color of any yeast colonies as one feature used in identification.

Why might I need this test?

It may be ordered when a yeast infection is suspected in a skin or wound area, especially if symptoms persist, recur, or do not respond to treatment. Results can help guide further identification or antifungal treatment decisions.

How is the test performed?

A clinician or laboratory collects a sample from the affected area. The specimen is placed on culture media and incubated under laboratory conditions; if yeast grows, the colonies are examined and their color is recorded.

How do I prepare for the test?

No special preparation is usually required. Follow the collection instructions provided by your clinician, and tell the laboratory if you recently took antibiotics or antifungal medicines because these can affect yeast growth.

Reference range

Adult: 10-40 U/LN/A

Specimen: serum

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Growth of yeast indicates that viable yeast was present in the collected sample, but it does not by itself establish that yeast is the cause of the symptoms. Colony color is a useful identification feature, although additional biochemical or molecular testing may be needed for a definitive species identification. The result should be interpreted with the sample site, symptoms, and other laboratory findings.

Short name

Yeast Colony Culture

Frequently asked questions

Does a positive result mean I have a yeast infection?
Not necessarily. Yeast can occasionally be present without causing infection, so the result must be interpreted together with symptoms and examination findings.
What does the colony color tell the laboratory?
Colony color is one characteristic used to help distinguish different types of yeast. It is considered with other growth features and, when needed, confirmatory testing.
Will I need another test to identify the yeast?
Possibly. If the organism cannot be identified confidently from its appearance, the laboratory may perform additional biochemical, instrumental, or molecular testing.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy