Fungal culture from a body fluid specimen (e.g., blood, cerebrospinal fluid, or other sterile fluid)

What This Test Measures

A fungal culture involves collecting a sample (like blood, spinal fluid, or other sterile body fluid) and growing it in a controlled environment to see if fungi grow. This helps determine the type of fungus causing an infection and guides treatment decisions.

Why It’s Done

Your doctor may order this test if you have symptoms like fever, persistent infections, or signs of a systemic fungal infection, especially in people with weakened immune systems, certain medical conditions, or after certain treatments.

Sample Collection and Process

A healthcare provider will collect the sample (e.g., from blood, spinal fluid, or other sterile sites) using a needle or other sterile tools. The sample is then sent to a lab, where it is cultured in a nutrient medium to encourage fungal growth over several days to weeks.

When Results Are Ready

Results typically take 3–7 days or longer, depending on the type of fungus and growth conditions. If fungi are detected, the lab will identify the specific type, which helps tailor antifungal treatment.