Candida antigen in vaginal secretions (qualitative probe)
This test checks for the presence of *Candida* yeast in your vaginal fluids, which may indicate an infection.
["A positive result suggests possible yeast infection; further evaluation may be needed."]
Key facts at a glance
- LOINC
- 92699-8
- Short code
- CANDVAG
- Synonyms
- Candida DNA Vag Ql Probe
- Category
- chemistry
- Sample
- serum
- Container
- Viral transport medium (VTM) or sterile container suitable for molecular testing
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- female
- Age range
- 12–99 years
- Method
- probe
- CPT
- 87481
- SNOMED
- 395174004
- Specimen volume
- 1-2 mL of vaginal fluid in transport medium
- Stability
- Refrigerated (2-8°C): up to 7 days; Frozen (-20°C or lower): up to 30 days. Transport to laboratory on cold packs within 24 hours of collection.
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 24–72 hours
- Order
- routine
What This Test Measures
The test detects specific proteins (antigens) produced by *Candida* yeast, a type of fungus that can cause infections in the vagina. A positive result means the test identified yeast-related material, but it does not confirm the exact type of yeast or severity of infection.
Why It’s Done
Your healthcare provider may order this test if you have symptoms like unusual vaginal discharge, itching, or discomfort, or if you’ve been treated for a yeast infection without improvement.
What to Expect
No special preparation is needed. A healthcare provider collects a sample from your vagina using a swab or probe. The sample is then analyzed in a lab to detect yeast antigens.
Possible Results
A positive result means yeast antigens were found, which may indicate an active infection. A negative result means no yeast antigens were detected, but other causes of symptoms (like bacterial infections) could still be present.
Reference range
Negative (Candida DNA not detected). Positive indicates presence of Candida species DNA in vaginal fluid.N/A
Patient should avoid douching, vaginal medications, spermicides, and sexual intercourse for 24-48 hours prior to specimen collection. Specimen should be collected prior to menses or at least 48 hours after menses ends.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Vaginal Candida Probe
Frequently asked questions
This test helps confirm a *Candida* vaginal infection, guiding treatment decisions. It’s not a definitive diagnosis but supports further evaluation if needed.
Does this test replace a vaginal culture?
Can I take antifungal medication before this test?
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