Serum Lysozyme Concentration (Substance Concentration)

What Does Lysozyme Do in Your Body?

Lysozyme is an enzyme that plays a role in breaking down bacterial cell walls. It’s naturally found in tears, saliva, and white blood cells, where it helps prevent infections. In blood tests, lysozyme levels can sometimes be elevated in response to infections, autoimmune diseases, or certain inflammatory processes.

When Might You Need This Test?

Your healthcare provider may order a lysozyme test if you have symptoms like frequent infections, unexplained fevers, or signs of inflammation. It may also be used in research or specialized diagnostic contexts, such as evaluating conditions like chronic granulomatous disease or certain immune disorders.

Common Reasons for Testing

While lysozyme testing isn’t as common as other blood tests, it may be part of a broader evaluation when doctors suspect conditions affecting immune function or bacterial susceptibility. For example, it could be considered in cases of recurrent infections or when other tests point toward an underlying immune issue.

How Is the Test Performed?

A blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate the serum (the liquid part without clots) for testing. The lysozyme level is measured using a specialized laboratory method, often an immunoassay or enzymatic technique, to detect its presence and concentration.