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Fungal DNA Detection in Blood by Quantitative Polymerase Chain Reaction (PCR)

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

This test checks for genetic material from certain fungi in your blood, helping identify infections caused by these microbes.

Quick summary

["Assists in diagnosing fungal bloodstream infections quickly and accurately."]

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

Key facts at a glance

LOINC
105805-6
Short code
Fusarium DNA Ct Bld Pos Qn NAA+probe
Synonyms
Fusarium DNA Ct Bld Pos Qn NAA+probe
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects the presence of fungal DNA fragments in your blood using a highly sensitive PCR method. It identifies specific genetic sequences unique to certain fungi, which can confirm infection even when traditional cultures or other tests are inconclusive.

Why It Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms of a fungal infection (such as fever, chills, or persistent fatigue) and risk factors like weakened immunity, recent invasive procedures, or exposure to fungi.

How the Test Works

A small blood sample is taken and analyzed for fungal DNA. The PCR process amplifies and detects these genetic sequences, allowing for early detection even at low levels of infection.

Preparation and Sample Collection

No special preparation is needed. A healthcare professional will draw blood, which is then sent to the lab for testing. Results are typically available within 24–48 hours.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Early detection of fungal DNA in blood is critical for prompt treatment. Fungal infections can be life-threatening if untreated, especially in immunocompromised individuals. This test helps guide treatment decisions by confirming the presence of fungal pathogens before symptoms worsen.

Short name

Fungal DNA Blood PCR

Frequently asked questions

What does a positive result mean?
A positive result indicates the presence of fungal DNA in your blood, suggesting a fungal infection. Your doctor will work with you to determine the specific type of fungus and the best treatment plan.
Can this test be used for other infections?
No, this test specifically detects fungal DNA. It is not used for bacterial, viral, or parasitic infections. Other tests would be needed for those conditions.
How soon can I expect results?
Results are usually available within 24–48 hours after the blood sample is processed. Your doctor will contact you directly with the results.
  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