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Candida species (yeast) blood culture

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

This test checks for the presence of yeast, specifically *Candida*, which can indicate an infection in your bloodstream. Yeast infections are more common in people with weakened immune systems, recent surgeries, or certain medical conditions.

Quick summary

["A positive result may signal a serious yeast bloodstream infection requiring urgent medical attention."]

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

Key facts at a glance

LOINC
19129-6
Short code
Deprecated Biopsy Culture Smear Tiss
Synonyms
Deprecated Biopsy Culture Smear Tiss
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
biopsy-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 healthcare provider may order this test if you have symptoms like fever, chills, or unexplained infections, especially if you have a higher risk of bloodstream yeast infections (e.g., from chemotherapy, organ transplants, or long-term antibiotics). It helps determine if yeast is causing an infection that needs treatment.

What Does a Positive Result Mean?

A positive result means yeast was found in your blood sample. This could mean you have a yeast bloodstream infection (*candidemia*), which requires prompt medical care, including antibiotics or antifungal medications. Your doctor will work with you to choose the best treatment.

What If the Test Is Negative?

A negative result means no yeast was detected in this sample. However, yeast infections can be hard to diagnose, so your doctor may recommend additional tests or monitoring if you still have symptoms. Follow-up may include retesting or other diagnostic methods.

How Is This Test Performed?

A blood sample is taken from a vein (usually in your arm) using a needle. The blood is placed in special containers that support yeast growth. These containers are then sent to a lab for culture and identification over several days.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Yeast Bloodstream Infections

Short name

Blood Culture for Yeast

Frequently asked questions

What symptoms might indicate this test is needed?
Symptoms of a yeast bloodstream infection can include fever, rapid heartbeat, confusion, or severe fatigue. People at higher risk (e.g., those with cancer, HIV, or recent surgeries) may develop infections more easily. Early detection is critical to prevent complications.
How soon can results be available?
Results typically take 3–7 days or longer, depending on lab processes. Some labs may provide preliminary findings sooner, but final identification of yeast species can take up to a week. Your doctor will discuss results with you.
Can I prevent yeast bloodstream infections?
Yes! To lower your risk, practice good hygiene, avoid excessive antibiotic use (which can disrupt gut yeast balance), and maintain a healthy immune system. If you have a weakened immune system, follow your doctor’s advice on prevention, such as antifungal treatments if needed.
  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