Final answer:
Renal function is assessed by measuring the serum levels of creatinine, potassium, and calcium. Abnormal levels of these substances in the blood may indicate kidney dysfunction or disease.
Step-by-step explanation:
Renal function is assessed by measuring the serum levels of creatinine, potassium, and calcium.
By analyzing the levels of these substances in the blood, healthcare professionals can evaluate how well the kidneys are functioning. Abnormal levels may indicate kidney dysfunction or disease.
For example, an elevated serum creatinine level is typically detected in cases of renal failure, while abnormal levels of potassium or calcium can also be indicative of kidney problems.