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Cytomegalovirus (CMV) DNA in Plasma (Quantitative)

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

This test detects the presence of cytomegalovirus (CMV) genetic material in your blood plasma. It helps monitor whether the virus is actively multiplying, which can be important for people with weakened immune systems.

Quick summary

["This test helps track CMV infection and response to treatment."]

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

Key facts at a glance

LOINC
88130-0
Short code
CMV DNA # Ocflu NAA+probe
Synonyms
CMV DNA # Ocflu NAA+probe
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
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 Might Be Ordered

Your healthcare provider may order this test if you have a weakened immune system (such as from HIV/AIDS, chemotherapy, or organ transplant) and suspect or confirm a CMV infection. It’s also used to check if your treatment is working or if the virus is spreading in your body.

How the Test Works

A small sample of your blood plasma is collected and tested for CMV DNA using a specialized molecular probe. If the virus is present, its genetic material will be detected and measured.

What to Expect Before the Test

No special preparation is needed. You may have a needle inserted into a vein (usually in your arm) to draw blood. If you’re on blood thinners or have a history of bleeding, let your provider know.

What to Expect During the Test

The blood draw usually takes a few minutes. You might feel a brief pinch, but it’s quick. You can sit or lie down while the test is done.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

CMV DNA Plasma

Frequently asked questions

What Does a Positive Result Mean?
A positive result means your body has detectable CMV genetic material in your plasma, which suggests the virus is active. This is especially important if you have a weakened immune system, as it may require treatment to prevent complications.
How Often Should I Get This Test?
Your healthcare provider will determine how often you need retests based on your health condition, treatment plan, and risk factors. Follow their instructions closely.
Can I Drink Alcohol Before This Test?
No, avoid alcohol for 24 hours before the test, as it may affect blood test results. Stick to water or other clear liquids if you need to eat or drink before your appointment.
  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