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Parallel flow dialyzer has a low internal resistance. Because of this blood pump is required.(a) True(b) FalseI had been asked this question in a job interview.This intriguing question comes from Digital Recorders in chapter Recording System of Biomedical Instrumentation

Answer» 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.


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