Measles and Mumps Tests
Reviewed
Measles and mumps are contagious viral infections. Tests can diagnose an active infection or check immunity. They include antibody tests (IgM for current/recent infection, IgG for immunity) and molecular tests (PCR) that look for the virus. A blood draw, swab, or nasal wash is used. Results help guide care and public health efforts. Vaccination is the best protection.
Preparation and collection
You don't need any special preparations for measles testing or mumps testing.
Understanding this test
Use the reference interval and units printed by the laboratory that performed the test. A result outside that interval is not a diagnosis by itself, and a result inside it does not rule out every condition. Your symptoms, history, medicines, timing, and related tests can change what the result means.
- A blood test may cause slight pain or bruising at the needle site, but most symptoms go away quickly.
- A swab test may cause a gagging feeling or a tickle when your throat or nose is swabbed.
- A nasal aspirate or wash may feel uncomfortable. These effects are temporary.
- A spinal tap carries its own risks; discuss with your provider if this test is needed.
What to do next
If you (or your child) have a measles or mumps infection, you should stay home for several days to recover and to make sure you don't spread the disease. Your provider will let you know when it will be okay to return to your regular activities. Talk with your provider if you have questions about test results.