Fungal Culture from Sputum
This test checks for the presence of fungi (yeasts or molds) in your sputum, which may indicate an infection requiring treatment.
["A fungal culture helps identify if an infection is caused by a fungus and guides treatment decisions."]
Key facts at a glance
- LOINC
- 577-7
- Short code
- Fungus Spt Cult
- Synonyms
- Fungus Spt Cult
- Category
- chemistry
- Sample
- sputum
- Container
- Sterile sputum container
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- — – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- culture
- CPT
- 85610
- SNOMED
- 396252006
- Specimen volume
- 3-5 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h
- TAT
- 4–24 hours
- Order
- routine
Why is this test done?
Your healthcare provider may order this test if you have symptoms like persistent cough, chest pain, or unexplained fever, especially if you have a weakened immune system or underlying lung conditions. It helps determine whether a fungal infection is present in your respiratory tract.
How is the test collected?
You will cough into a sterile container, and the sputum sample is sent to the lab for culture. The lab will grow the sample in a controlled environment to identify any fungal organisms.
What does the test result mean?
A positive result means fungi were detected in your sputum, which may indicate an infection. The type of fungus and its sensitivity to antifungal medications can help guide treatment. A negative result means no fungi were found in the sample, but further testing may still be needed if symptoms persist.
What are the risks or side effects?
There are no direct risks from this test, but collecting sputum may cause mild discomfort or irritation of the throat. The culture process itself is non-invasive and does not involve radiation or needles.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Fungal cultures from sputum are critical for diagnosing respiratory fungal infections, such as aspergillosis or candidiasis, especially in patients with chronic lung diseases, HIV/AIDS, or those on immunosuppressive therapy. Accurate identification helps tailor antifungal treatment to prevent complications and improve outcomes.
Short name
Sputum Fungal Culture
Frequently asked questions
How long does it take to get results?
What if I have no symptoms but the test is still recommended?
Can I eat or drink before the test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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