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Fungal Culture with Sensitivity Testing (Plasma/Serum)

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

This test checks for the presence of fungi in your blood and identifies which, if any, antibiotics would be most effective against them.

Quick summary

["Helps diagnose fungal infections and guide treatment options."]

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

Key facts at a glance

LOINC
29577-4
Short code
Fungal Susc Pnl Islt
Synonyms
Fungal Susc Pnl Islt
Category
coagulation
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 This Test Is Done

Your healthcare provider may order this test if you have symptoms of a fungal infection, such as fever, chills, or unusual fatigue, especially after a recent illness, surgery, or weakened immune system. It may also be done if you have a condition that increases your risk of fungal infections, like diabetes, cancer, or taking certain medications that suppress your immune system.

What to Expect Before the Test

No special preparation is needed. You may have a small needle inserted into a vein in your arm to draw blood. This is usually done in a healthcare setting and may cause a brief sting or discomfort.

What Happens During the Test

The blood sample is sent to a lab where it is cultured to grow fungal organisms, if present. Sensitivity testing helps determine the best antibiotic to treat any identified fungi.

Results and Follow-Up

Results may take several days to weeks, depending on fungal growth. Your healthcare provider will discuss the results and next steps, such as starting treatment if needed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Fungal Blood Culture Screen

Frequently asked questions

How long does it take to get results from this test?
Results can take several days to a few weeks, as fungi grow slowly in culture. Your provider will explain timelines based on your specific situation.
What symptoms might indicate a fungal blood infection?
Symptoms can include fever, chills, persistent fatigue, unexplained weight loss, or areas of redness/swelling. These symptoms are not definitive but warrant further evaluation if present.
Can I take antibiotics before my fungal blood culture?
No, antibiotics may interfere with the test results. Avoid them unless instructed by your healthcare provider.
  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