Serum/plasma mass concentration of substance related to serum amyloid A (SAA) protein

What Is Serum Amyloid A (SAA)?

Serum amyloid A (SAA) is a protein produced by the liver in response to inflammation, infection, or stress. It’s part of the acute-phase response, meaning its levels rise quickly when your body fights off illness or injury. While SAA itself isn’t harmful, high levels can indicate conditions like infections, autoimmune diseases, or chronic inflammation.

Why Might You Need This Test?

Your healthcare provider may order an SAA test to monitor or diagnose conditions such as infections (like sepsis), inflammatory diseases (like rheumatoid arthritis), or to check for signs of systemic inflammation before or after treatment. It can also help assess how well your body is responding to treatment for these conditions.

How Is the Test Done?

A blood sample is drawn from a vein in your arm. The blood is then processed to separate serum or plasma, where the SAA protein is measured using a specialized laboratory technique. The result is reported as a mass concentration of SAA in the blood.

What Do the Results Mean?

Results are typically compared to a reference range provided by your lab. Elevated SAA levels may suggest inflammation or infection, while normal levels don’t rule out these conditions entirely. Your doctor will interpret results in the context of your overall health and symptoms.