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Fungal Culture from Cerebrospinal Fluid (CSF)

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

This test helps detect and identify fungi in your spinal fluid, which may indicate an infection like meningitis caused by fungi.

Quick summary

["A fungal infection in your spinal fluid may require urgent medical attention and treatment."]

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

Key facts at a glance

LOINC
88143-3
Short code
Fungus Corn/Cnjt Cult
Synonyms
Fungus Corn/Cnjt Cult
Category
chemistry
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 For?

Your healthcare provider may order this test if you have symptoms like severe headache, neck stiffness, fever, confusion, or other signs of a brain or spinal cord infection. It’s also used to confirm fungal meningitis or other fungal infections in the central nervous system after other tests are inconclusive.

How Is the Sample Collected?

A small amount of your spinal fluid is collected through a procedure called a lumbar puncture (spinal tap). This involves inserting a needle into your lower back to safely draw fluid from your spinal canal. The collected fluid is then sent to the lab for fungal culture testing.

What Does the Test Involve?

The lab will examine the CSF sample for the presence of fungal organisms by growing them in a controlled environment over time. This process helps identify the type of fungus, if any, and guides treatment decisions.

How Long Does It Take to Get Results?

Results can take several days to a few weeks, depending on how the fungi grow in the lab. Early identification is crucial for starting appropriate antifungal treatment promptly.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Fungal meningitis or infections in the central nervous system are serious and can be life-threatening if untreated. Early detection through this test allows healthcare providers to tailor antifungal medications to your specific needs and prevent complications like brain swelling or permanent damage.

Short name

CSF Fungal Culture

Frequently asked questions

How often can fungal infections in the CSF occur?
Fungal infections in the CSF are rare but can happen, especially in people with weakened immune systems, recent surgeries, or underlying conditions like diabetes or HIV. Your risk depends on your health and medical history.
What symptoms might indicate a fungal infection requiring this test?
Symptoms may include severe headache, neck stiffness, fever, confusion, nausea, or sensitivity to light. If you experience these symptoms after a recent procedure or have a weakened immune system, let your doctor know.
Can I prevent fungal infections in the CSF?
While you can’t always prevent fungal infections, maintaining good health—such as controlling diabetes, avoiding unnecessary procedures, and following infection prevention guidelines—can lower your risk. If you’re at higher risk, your doctor may recommend preventive measures.
  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