Blood Pigments Panel, Serum or Cerebrospinal Fluid

What is this test?

This laboratory panel measures selected pigment-related substances in serum, the liquid portion of blood, or cerebrospinal fluid (CSF), the fluid surrounding the brain and spinal cord. The exact substances included depend on the laboratory's panel.

Why might I need this test?

A clinician may order this panel to evaluate changes in fluid color, unexplained jaundice, or other concerns involving pigment metabolism. Serum and CSF testing may be used in different clinical situations, so the reason for testing depends on your symptoms and medical history.

How is the test performed?

For serum testing, a blood sample is drawn from a vein and the liquid portion is separated for analysis. If CSF testing is needed, a clinician performs a lumbar puncture to collect cerebrospinal fluid. The laboratory analyzes the sample using validated methods.

How do I prepare for the test?

Routine blood collection usually requires no special preparation, although fasting may be requested for other tests performed at the same time. If CSF is required, follow your clinician's instructions because collection is performed with a lumbar puncture and may involve rest afterward.