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Tests
A beta-2 microglobulin tumor marker test measures the amount of a protein called beta-2 microglobulin (B2M) in your body fluids. The test usually uses a sample of your blood. It may also be done using urine (pee) or in rare cases cerebrospinal fluid (CSF).
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Tests
The determination of the number of helper alpha-beta T-lymphocytes in a sample.
Tests
The determination of the ratio of a sub-population of alpha-beta T-lymphocytes to total alpha-beta T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the ratio of the alpha-beta T-lymphocytes to total T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Tests
The determination of the amount of amyloid beta protein which is composed of peptides 1 to 41 in a sample.
Indicators
An antiphospholipid autoantibody that reacts with beta-2-glycoprotein 1, and a member of family of autoantibodies that cause antiphospholipid antibody syndrome and may be found in system lupus erythematosus.
Tests
The determination of the amount of bacterial Beta-lactamase present in a sample.
Tests
The determination of the amount of beta alanine present in a sample.
Tests
The determination of the amount of the 1-42 amino acid beta amyloid protein isoform present in a sample.
