Q. Which of the following is correct with reference to haemodialysis?
A) Absorbs and resends excess of ions
B) The dialysis unit has a coiled cellophane tube
C) Blood is pumped back through a suitable artery after haemodialysis
D) Anti-heparin is added prior to haemodialysis
Explanation
Haemodialyser is also known as blood dialyser or artificial kidney and is used in the condition of renal failure. During dialysis, the blood is taken form radial artery, mixed with heparin (anticoagulant) cooled to $0℃$ and passed through cellophane tubes of the disposable dialyser. The nitrogenous waste products are passed out into dialysing fluid through simple diffusion. Then purified blood is mixed with antiheparin and passed into radial vein.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.