Serum or plasma total protein concentration (qualitative screening)

Why Is This Test Done?

Your healthcare provider may order this test to check for conditions affecting protein production, such as liver disease, kidney problems, or severe malnutrition. It can also be part of routine health evaluations or when symptoms like swelling, fatigue, or unexplained weight loss appear.

What to Expect Before the Test

No special preparation is needed. You may have a blood draw, where a small amount of blood is taken from a vein in your arm. If a urine sample is used, you might be asked to collect a midstream sample at home. Always follow your provider’s instructions for any fasting or fluid restrictions.

What Happens During the Test?

Blood or urine is sent to a lab for analysis. The test is qualitative, meaning it provides a yes/no or high/low result rather than a precise number. Results are typically reviewed within hours or days, depending on lab processes.

What Are Possible Results?

Results may be categorized as normal, low, or high. Low protein levels could suggest conditions like malnutrition, kidney disease, or liver failure. High levels might indicate dehydration, multiple myeloma, or severe inflammation. Your provider will discuss these findings with you.