Correct choice is (b) False
Explanation: Parallel flow dialyzer has a low internal resistance which allows adequate blood flow through the dialyzer with the patient’s arterial blood pressure, eliminating the need for a blood pump. The dialyzing surface area of a parallel flow dialyzer is about 1 sq m. At a blood flow rate of 200 ml/min and a dialysate flow of 500 ml/min, the urea and creatinine clearance is about 80 and 64 ml/min.