Detects the genetic material (DNA/RNA) of cytomegalovirus (CMV) using PCR.
Directly confirms an active infection, often earlier than antibody tests can. Used in the diagnosis of CMV infection, important in pregnancy, newborns and people with weak immunity.
Fever, rash, jaundice, suspected exposure to infection, before surgery or pregnancy, as advised by a doctor.
No fasting needed.
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PCR detects the organism itself, so it is very useful early in infection; antibody tests show the body's response and are useful later.
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Usually a blood sample; for some infections a swab, CSF, urine or other sample is used — as advised by your doctor.
Usually within 3–4 days after the sample reaches the lab. You will receive the report online.