Serum or Plasma Protein Electrophoresis with Bromocresol Green (BCG) Dye Binding Assay

What This Test Measures

The test uses bromocresol green dye to bind to proteins in your serum or plasma. Different protein fractions (e.g., albumin, alpha-globulins, beta-globulins, gamma-globulins) absorb varying amounts of dye, creating a pattern that reflects their relative concentrations. This pattern is analyzed to identify shifts that may signal underlying health issues.

Common Uses and Conditions

This test is often used to detect conditions like multiple myeloma, liver disease, nephrotic syndrome, or other protein-related disorders. It may also help monitor treatment progress or evaluate conditions affecting protein synthesis or breakdown.

Sample Collection and Preparation

A blood sample is drawn from a vein, typically in the arm. The blood is then separated into serum (after clotting) or plasma (after anticoagulation) for testing. The sample is processed and analyzed using the bromocresol green dye method in a laboratory.

How Results Are Interpreted

Results are presented as a protein pattern graph or report showing relative amounts of different protein fractions. Abnormal patterns may include elevated or reduced levels of specific proteins, which can indicate conditions like protein malnutrition, infections, or systemic diseases.