Tests
CSF Leukocyte Count
The number of leukocytes in the cerebrospinal fluid sample.
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The number of leukocytes in the cerebrospinal fluid sample.
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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).
Tests
A cerebrospinal fluid (CSF) analysis tests a sample of your CSF for diseases that affect the brain and spinal cord, which make up your central nervous system. Your central nervous system controls and coordinates everything you do, including your ability to move, breathe, see, think, and more.
Article
Research record from Front Cell Infect Microbiol, 2026-07-28. PMID 42582033.
Tests
CSF stands for cerebrospinal fluid. IgG stands for immunoglobulin G. It is a type of antibody. Antibodies are proteins that your immune system makes to fight germs . A CSF IgG index measures the levels of IgG in your cerebrospinal fluid.
Indicators
Interleukin-5 (134 aa, ~15 kDa) is encoded by the human IL5 gene. This protein plays a role in the growth and differentiation of both B-cells and eosinophils.
Tests
This test measures the level of lactate, also called lactic acid, in a sample of your blood. In certain cases, cerebrospinal fluid (CSF) may be used. Normally, you have low levels of lactate in your blood and CSF. High levels of lactate may be a sign of a wide variety of medical conditions.
Article
Research record from ASM Case Rep, 2026-07-23. PMID 42683398.
Tests
Lyme disease is an infection caused by bacteria you get from tick bites . Lyme disease tests look for signs of infection in a sample of your blood or cerebrospinal fluid (CSF). CSF is a clear liquid that flows in and around your brain and spinal cord. The test checks your sample for antibodies that your immune system makes to fight the bacteria that cause Lyme disease.