Cytomegalovirus (CMV) Viral Culture from Specimen
This test checks for the presence of the cytomegalovirus (CMV) in a sample of your bodily fluid, helping doctors determine if you have an active infection.
["CMV culture helps diagnose active CMV infection in your body."]
Key facts at a glance
- LOINC
- 5838-8
- Short code
- CMV Spec Ql Cult
- Synonyms
- CMV Spec Ql 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
- organism-specific-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
What Is CMV Culture Used For?
CMV culture is primarily used to confirm an active CMV infection, especially in people who are immunocompromised (such as those with HIV/AIDS, undergoing chemotherapy, or having an organ transplant). It can also be used to monitor the effectiveness of treatment or guide decisions about further medical care.
How Does the Test Work?
A small sample of your bodily fluid (like blood, saliva, or other fluids) is collected and placed in a special medium where the virus can grow. If CMV is present, it will multiply, and the lab can detect it after a few days to weeks.
Preparation for the Test
No special preparation is needed for this test. You may need to provide a sample based on your doctor’s instructions, such as blood, saliva, or other fluids depending on the clinical situation.
What to Expect During the Test
The test involves taking a sample from your body, which may feel mild discomfort depending on the type of sample collected (e.g., blood draw, swab). Results take time to grow and analyze, so your doctor will discuss them with you once available.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
CMV culture is critical for diagnosing active CMV infections, which can cause serious health issues in people with weakened immune systems. Early detection allows for timely treatment and management to prevent complications like organ damage or severe illness.
Short name
CMV Culture
Frequently asked questions
How long does it take to get CMV culture results?
What does a positive CMV culture mean?
Can I have false-positive or false-negative results with CMV culture?
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