TLS Online TPP Program

#Question id: 12384


To evaluate kidney function in a 45-year-old woman with type II diabetes, you ask her to collect her urine over 24 hours. She collects 3600 ml of urine in that period. The clinical laboratory returns the following results after analyzing the patient’s urine and plasma samples: plasma creatinine = 4 mg/dL, urine creatinine = 32 mg/dL, plasma potassium = 5 mmol/L, and urine potassium = 10 mmol/L.
What is this patient’s approximate GFR, assuming that she collected all her urine in the 24-hour period?

#Unit 7. System Physiology – Animal
  1. 10 ml/min
  2. 20 ml/min
  3.  30 ml/min
  4. 40 ml/min