Protein Electrophoresis (Serum) with Bromocresol Green Dye

Why This Test Is Done

Doctors may order this test to diagnose or monitor conditions affecting protein levels, such as kidney disease, liver disease, or certain blood disorders. It can also help identify protein abnormalities like multiple myeloma or certain types of autoimmune diseases.

How the Test Works

A small blood sample is taken, and the serum (liquid part of blood after clotting) is placed in a gel. An electric current is applied, causing proteins to move through the gel at different speeds. The bromocresol green dye binds to specific protein fractions, allowing for visualization and measurement.

Common Conditions Monitored

This test is often used to check for conditions like multiple myeloma, where abnormal proteins (like monoclonal gammopathy) accumulate. It can also help evaluate kidney function, liver function, and detect signs of inflammation or infection.

Sample Collection

A needle is used to draw blood from a vein, usually in your arm. The blood is then processed to separate the serum, which is sent to the lab for testing. This process is quick and typically done in a doctor’s office or clinic.