Measures all proteins in your blood, which help fight infection and carry nutrients.

A group of proteins that support the immune system.

A measure of the overall function of your kidneys. The GFR assesses the total capacity of both kidneys.

Waste product from muscles; used to assess kidney function.

A waste product from protein breakdown; used to assess kidney function.

Helps control fluid balance, blood pressure, and nerve activity.

Works with other electrolytes to maintain fluid balance and blood pressure.