Ordering the Cytomegalovirus (CMV) Test
Ordering the Cytomegalovirus (CMV) Test helps check for past or current infection with the CMV virus, which can affect people differently depending on their age, immune system, and health status. This test measures CMV IgG and IgM antibodies in your blood, showing if you have a new or older infection. Interestingly, CMV is one of the most common viruses worldwide, and many people may carry it without knowing, but it can be more serious for pregnant people or those with weakened immune systems.
When ordering this test, you can expect:
- Clear results showing if you have a recent or past CMV infection
- Information to help guide treatment or next steps with your doctor
- Support for monitoring CMV in people with weakened immune systems
- Useful data for those planning pregnancy or who are pregnant
- Peace of mind for people exposed to someone with CMV
Who Might Benefit from CMV Antibody Screening
People who are planning to start a family and want to know if they have been exposed to CMV may find this test helpful. For example, someone who works in a daycare and is often around young children might want to check if they have a current or past CMV infection, since children can spread the virus easily.
Ordering this test may also be helpful in these situations:
- People with a weakened immune system, such as after an organ transplant
- Pregnant people who want to check for CMV exposure
- Those who have been in close contact with someone recently diagnosed with CMV
- People with unexplained fever or fatigue that lasts for several weeks
- Someone who donates blood or organs, since CMV can be passed through these donations
This test gives clear answers about your CMV status, which can help your doctor decide if you need treatment or more follow-up. Delaying this test could mean missing the best time to start treatment or take steps to protect others, especially if you are pregnant or have a weak immune system.
Order now to get the information you need for your next steps.
Preparing for Your Cytomegalovirus Blood Analysis
No fasting is needed before this test, so you can eat and drink as usual. Always follow any instructions your doctor or healthcare provider gives you to make sure your sample is collected correctly and your results are as helpful as possible.
Labs Included When Ordering Your Cytomegalovirus (CMV) Test
| Test Name | Reference Range | What the Test Measures | Low and High Levels of Cytomegalovirus (CMV) Test |
|---|---|---|---|
| Cytomegalovirus (CMV) IgG | Negative: <0.6 Equivocal: 0.6–0.69 Positive: >0.7 |
This test checks for IgG antibodies, which show if you have had a CMV infection in the past. IgG stays in your body for life and means you have been exposed before. |
High levels mean you have had a CMV infection at some point in your life.
Low levels mean you have not been exposed to CMV or it is too early for your body to make IgG antibodies. |
| Cytomegalovirus (CMV) IgM | Negative: <0.9 Equivocal: 0.9–1.0 Positive: >1.1 |
This test looks for IgM antibodies, which appear soon after a new CMV infection. IgM usually shows up first and then fades as IgG increases. |
High levels mean you may have a recent or current CMV infection.
Low levels mean there is no sign of a new CMV infection, or it is too early for IgM to appear. |
Reference ranges can change over time. For the most current values, visit the Quest Diagnostics lab test directory.
Cytomegalovirus (CMV) Test FAQ
Is there Cytomegalovirus testing near me?
You can find a nearby location for Cytomegalovirus testing using the patient service center locator, which also lists mobile phlebotomy options. This makes it easier to get tested quickly, especially if you need results for pregnancy planning or have a weakened immune system and want to avoid crowded places.
What is the cost of the test?
The price you see for the Cytomegalovirus (CMV) Test includes all fees, including sample collection at patient service center locations. Ordering this test is worth it if you need to know your CMV status before pregnancy or after being exposed to someone with CMV.
How often should I retest?
Retesting is usually recommended if you have new symptoms, are pregnant and at risk, or if your doctor suggests it after a recent exposure. Regular retesting can help track changes in your CMV status, especially if you are in a high-risk group or your immune system is weak.
How accurate is the test?
This test uses enzyme immunoassay (EIA) to detect CMV IgG and IgM antibodies, with a specificity of 99% and a sensitivity of 98%. All tests at TrueHealthLabs.com are performed by CLIA-certified labs, meeting strict quality and precision standards.
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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