Counter-current flow through the artificial kidney is used so that the dialysate enters the kidney at the blood exit-end. Where the blood concentration of waste products is at the lowest level?(a) lowest level(b) very high level(c) high level(d) medium levelThe question was asked in examination.This question is from Digital Recorders topic in chapter Recording System of Biomedical Instrumentation

Counter-current flow through the artificial kidney is used so that the

1.	Counter-current flow through the artificial kidney is used so that the dialysate enters the kidney at the blood exit-end. Where the blood concentration of waste products is at the lowest level?(a) lowest level(b) very high level(c) high level(d) medium levelThe question was asked in examination.This question is from Digital Recorders topic in chapter Recording System of Biomedical Instrumentation
Answer» Correct CHOICE is (a) lowest level To explain I would say: Counter-current FLOW through the artificial kidney is used so that the dialysate enters the kidney at the blood exit-end where blood CONCENTRATION of waste PRODUCTS is at the lowest level. The removal of waste products during dialysis is proportional to the concentration gradient across the membrane. In order to effect the MAXIMUM gradient, the concentration of waste products in the dialysate should be maintained at zero.

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