Final answer:
The subject of this question is Medicine. Creatinine clearance is used to assess kidney function and can be calculated using the formula Ux V / B. The value can be corrected for body surface area.
Step-by-step explanation:
The subject of this question is Medicine. The question is related to the measurement of a patient's creatinine clearance, which is used to assess kidney function. Creatinine clearance is calculated using the formula Ux V / B, where U represents the concentration of creatinine in urine, V represents urine flow rate, and B represents the concentration of creatinine in plasma. The creatinine clearance value can be corrected for body surface area to allow comparison between different individuals.