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Fungal Blood Culture (with Biochemical Identification)

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

This test checks for the presence of fungi (yeasts or molds) in your blood, often done when you have signs of a serious fungal infection.

Quick summary

["Blood cultures help identify infections that may require urgent medical treatment."]

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

Key facts at a glance

LOINC
106045-8
Short code
Fungus Bifl Cult
Synonyms
Fungus Bifl 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

Why Is This Test Done?

Your doctor may recommend this test if you have symptoms like fever, chills, or unexplained infections, especially if you have a weakened immune system, recent surgery, or conditions like cancer or diabetes that increase your risk of fungal infections.

What to Expect Before the Test

You’ll have small tubes inserted into your veins (usually in your arm) to draw blood. The blood is then sent to a lab where it’s mixed with special growth media to detect fungi. This process can take several days to weeks to complete.

What Happens During the Test?

No special preparation is needed, but you may be asked to avoid certain medications or foods that could interfere with results. If you’re on antibiotics, let your doctor know.

What Are Possible Results?

If fungi are found, your doctor will work with a specialist to determine the type of fungus and the best treatment. Negative results mean no fungi were detected in your blood sample at the time of testing.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Fungal Blood Culture

Frequently asked questions

How long does it take to get results from a fungal blood culture?
Results can take several days to weeks, depending on lab processes and whether fungi are detected. Your doctor will contact you once results are available.
Can I take antibiotics before or after this test?
If you’re prescribed antibiotics, take them as directed by your doctor. Stopping or starting them without guidance may affect test accuracy or infection treatment.
What if I have a mild fever but no other symptoms?
A mild fever alone may not always indicate a fungal infection. Blood cultures are typically ordered if symptoms like persistent fever, chills, or signs of infection persist despite treatment.
  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