| Abbreviation | Meaning |
| FBC | Full Blood Count |
| G&S | Group and Screen |
| HB | Haemoglobin |
| INR | International normalised ratio |
| LFTs | Liver Function Test |
| NBM | Nil By Mouth |
| NEWS2 | National Early Warning Score |
| OGD | Oesphago-Gastro-Dundenoscopy |
| U&E | Urea and Electrolytes |
| VBG | Venus Blood Gas |
