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Fungal PCR (Genomic DNA) – Qualitative, Stool Sample – Targeting Fungal Genes

Published: August 9, 2026Updated: August 16, 2026

This test checks for the presence of fungal DNA in your stool using a molecular method. It helps identify possible fungal infections in your digestive system.

Quick summary

["A fungal DNA test may help diagnose infections like candidiasis or other fungal diseases in your gut."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
91086-9
Short code
Fungal BT2 gene Spec Ql NAA+probe
Synonyms
Fungal BT2 gene Spec Ql NAA+probe
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
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 This Test Measures

The test detects specific genetic material (DNA) from fungi that may be causing an infection. It does not measure active fungal growth or count organisms but confirms their presence if detected.

How the Test Works

A small sample of your stool is collected and analyzed using polymerase chain reaction (PCR) technology. This method amplifies and identifies fungal genetic sequences if they are present.

When This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like persistent diarrhea, abdominal pain, or other signs of gastrointestinal infection, especially if fungal causes are suspected.

Preparation for the Test

No special preparation is needed. Collect a stool sample as directed by your provider, typically using a provided container.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is primarily used to confirm fungal infections in the gastrointestinal tract. It can help guide treatment decisions, especially in cases where traditional cultures or clinical suspicion points toward fungal causes.

Short name

Fungal DNA Test (Stool)

Frequently asked questions

What does a positive result mean?
A positive result means fungal DNA was detected in your stool sample. This suggests the presence of a fungal infection, but further testing or clinical correlation may be needed to determine the specific type and appropriate treatment.
What does a negative result mean?
A negative result means no fungal DNA was found in this sample. However, fungal infections can sometimes be intermittent, so repeated testing or other diagnostic methods may be needed if symptoms persist.
How long does it take to get results?
Results are typically available within 24 to 48 hours, depending on lab processing times.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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 16, 2026. · Read our editorial policy