| Viva 3 | The anion gap () |
| Viva 4 | Buffer systems and renal handling of acid () |
| Viva 4(p.2) | Henderson–Hasselbalch equation () |
| Viva 6 | Mechanism of hypochloraemic alkalosis due to vomiting () |
| Viva 1 | Blood gas interpretation: the Clark electrode () |