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CMV viral load

Transplant monitoring · also printed as CMV PCR, CMV DNA, CMV viral load, Cytomegalovirus PCR, CMV DNA PCR

Typical UK adult rangeNo single typical range

Not detected is the usual result and there is no typical range; teams set their own treatment thresholds.

What this test measures

CMV PCR measures the amount of cytomegalovirus in blood. After transplantation or during strong immune suppression the virus can reactivate and is monitored closely.

Why doctors request it

Transplant and haematology clinics check it regularly, weekly in the highest-risk period.

What commonly pushes it up

Reactivation during immune suppression
New infection from the donor organ

What commonly pushes it down

Antiviral treatment
Reducing immune suppression

Everyday reasons for a value outside the range

Units differ between labs (IU/mL, copies/mL, log)
Low-level detection is common and often watched

About the sample

No fasting needed.

Written by a UK consultant physician. Typical UK adult reference ranges; your laboratory's own printed range takes precedence.

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This is an educational summary of results you uploaded. It is not medical advice, a diagnosis or a treatment plan, and it does not replace the doctor who requested the test. If you are worried, or a result is marked outside range, discuss it with your doctor. Written and reviewed by a UK consultant physician. Reference ranges vary between laboratories.