Which laboratory test is primarily used to evaluate kidney function?

The Basic Metabolic Panel (BMP) is primarily used to evaluate kidney function because it includes key electrolytes and waste products that reflect how well the kidneys are performing. Components of the BMP, such as serum creatinine and blood urea nitrogen (BUN), are crucial for assessing kidney health. Creatinine levels indicate how effectively the kidneys are filtering waste from the blood, while BUN provides insights into nitrogen balance and kidney function.

Other tests listed, such as the Complete Blood Count (CBC), primarily evaluate blood cells and overall health rather than kidney function. A urinalysis can provide valuable information about kidney issues as well, but it is not as comprehensive for assessing kidney function as the BMP. Liver Function Tests focus on liver health, making them irrelevant to kidney evaluation. Hence, the BMP is the preferred laboratory test to assess kidney function effectively.