In hemodialysis, the role of artificial kidney is actually played by:
| 1. | Dialysate | 2. | Blood pump |
| 3. | Water system | 4. | Cellulose membrane |
During hemodialysis:
| I: | Cellophane tube in a dialysing unit acts as artificial kidney. |
| II: | Heparin is added to the blood before it is passed on to the dialysing unit. |
| III: | The cleared blood is pumped back to the body through a vein after adding anti-heparin to it. |
1. Only I is correct
2. Only I and II are correct
3. Only II and III are correct
4. I, II and III are correct