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Fungal Culture from Specified Specimen (Serum or Plasma)

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

This test checks for the presence of fungi in your blood or body fluids by growing them in a lab to identify any infections.

Quick summary

["A fungal culture helps diagnose infections caused by yeast or mold that may require specific treatment."]

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

Key facts at a glance

LOINC
27414-2
Short code
Fungus Stl Cult
Synonyms
Fungus Stl Cult
Category
chemistry
Sample
stool
Container
Clean container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
culture
Specimen volume
5 g
Stability
Refrigerated: 24h, Frozen: 7d
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like fever, chills, or unexplained infections, especially if you have a weakened immune system, recent surgery, or a condition that increases your risk of fungal infections. It can also be used to monitor treatment effectiveness or guide decisions about antifungal medications.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for a few hours before the blood draw if serum/plasma is collected. If a different body fluid (like saliva or urine) is involved, follow your provider’s instructions.

What Happens During the Test

A healthcare professional will collect a sample (blood, serum, plasma, or other fluid) using a needle or swab. The sample is then sent to a lab, where it is cultured to grow any fungi present over days to weeks.

What the Results Mean

Positive results indicate the presence of fungi, which may require antifungal treatment. Negative results mean no fungi were detected in the sample at the time of testing. Follow-up tests or additional samples may be needed for confirmation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Fungal Culture

Frequently asked questions

What does a positive fungal culture mean?
A positive result means fungi were found in your sample. This could indicate an infection that may need antifungal medication. Your healthcare provider will discuss the next steps, such as identifying the specific type of fungus and planning treatment.
How long does it take to get fungal culture results?
Results can take several days to a couple of weeks, as fungi grow slowly in the lab. You may receive preliminary guidance from your provider while waiting for final results.
Can I take antibiotics before a fungal culture?
No, antibiotics (especially broad-spectrum ones) can interfere with fungal culture results. If you’ve been prescribed antibiotics, ask your provider to stop them before the test or discuss alternatives.
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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