In Vitro Conversion, Yeast Isolate — Culture
A culture-based laboratory test that observes how an isolated yeast changes or grows under controlled conditions to help characterize the organism.
["This test helps identify a cultured yeast by observing its characteristic growth or conversion pattern in the laboratory."]
Key facts at a glance
- LOINC
- 97939-3
- Short code
- In Vitro Conversion Yst Islt Cult
- Synonyms
- In Vitro Conversion Yst Islt Cult
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- culture
- 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 is a laboratory test performed on a yeast that has already been isolated and grown in culture. It observes how the yeast cells change form or grow when exposed to controlled laboratory conditions, which can help identify or characterize the organism.
Why might I need this test?
A clinician may order it when a yeast is found in a culture and the organism's identity needs to be confirmed. It is usually part of a broader microbiology work-up rather than a stand-alone test on a blood or urine sample.
How is the test performed?
Laboratory staff use the cultured yeast isolate and examine its growth or conversion pattern under standardized conditions. The observed behavior is compared with known characteristics of different yeasts.
How do I prepare for the test?
No special preparation is needed for the conversion test itself because it is performed on an existing culture. If a new specimen is required, preparation depends on the body site and should follow your healthcare provider's collection instructions.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
A typical conversion or growth pattern supports the laboratory identification of the cultured yeast. An atypical or absent pattern may lead to additional testing or suggest that the organism differs from the suspected species. This result alone does not establish where the yeast was found, whether it caused infection, or whether it represents colonization.
Short name
Yeast In Vitro Conversion Test
Frequently asked questions
Is this the same as a blood or urine yeast culture?
What does a positive conversion result mean?
Does an abnormal result mean I have a yeast infection?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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 16, 2026. · Read our editorial policy