General Medicine General cf1742e6 If a patient has a creatinine clearance of 90 ml/min, a urine flow rate of 1 ml/min, a plasma K+ concentration of 4 mEq/L, and a urine K+ concentration of 60 mEq/L, what is the approximate rate of K+ excretion? A 0.06 mEq/min B 0.30 mEq/min C 0.36 mEq/min D 3.6 mEq/min