What is the normal reference range for total protein in a standard adult panel?

What is the normal reference range for total protein in a standard adult panel?

• A. 6.2-8.2 g/dL
• B. 5.0-7.0 g/dL
• C. 7.0-9.0 g/dL
• D. 6.0-7.0 g/dL

Answer: (A)

Total protein is the combined amount of all proteins in serum, mainly albumin and globulins, and it reflects liver production, nutritional status, and immune activity. In adults, the normal reference range is about 6 to 8 g/dL. So a range like 6.2 to 8.2 g/dL fits squarely within that expected spread, accounting for slight lab-to-lab variation (many labs use roughly 6.0–8.3 g/dL). The other ranges either sit too low or are narrower than the typical interval, making them less consistent with standard reference values.

Total protein is the combined amount of all proteins in serum, mainly albumin and globulins, and it reflects liver production, nutritional status, and immune activity. In adults, the normal reference range is about 6 to 8 g/dL. So a range like 6.2 to 8.2 g/dL fits squarely within that expected spread, accounting for slight lab-to-lab variation (many labs use roughly 6.0–8.3 g/dL). The other ranges either sit too low or are narrower than the typical interval, making them less consistent with standard reference values.