What it measures
The proteins in the blood serum, separated into bands by an electric current. The pattern shows the main protein groups and whether there is an abnormal band, called a paraprotein. A paraprotein is a single type of antibody made in large amounts by one group of cells.
Why people test it
- Looking for myeloma and related conditions that make a paraprotein.
- Measured after a raised total protein or globulin result, or an unexplained high calcium.
- Investigating unexplained bone pain, anaemia or kidney problems.
- Monitoring a known paraprotein over time.
Typical range
There is no single numeric range. The report says whether an abnormal band was seen and, if so, its type and amount. Labs word their reports differently, and the report shows the lab's own reading.
Finger-prick or vein?
Providers offer this test only from a vein sample, taken at a clinic.