Scores

• NEWS2National Early Warning Score 2
• Glasgow Coma ScaleEyes, verbal and motor response
• 4ATRapid assessment for delirium (NICE-recommended)
• CURB-65Community-acquired pneumonia severity
• Wells score (PE)Two-level pulmonary embolism probability
• Wells score (DVT)Two-level deep vein thrombosis probability
• CHA₂DS₂-VAScStroke risk in atrial fibrillation or flutter
• ORBITBleeding risk on anticoagulation (NICE-preferred)
• Glasgow-Blatchford scoreUpper GI bleed — need for intervention (pre-endoscopy)
• AMTSAbbreviated Mental Test Score — 1 point per correct answer

Formulas

• Adjusted calciumAlbumin-adjusted calcium
• Anion gapNa⁺ − (Cl⁻ + HCO₃⁻)
• Creatinine clearanceCockcroft–Gault, for drug dosing
• Maintenance fluidsDaily routine maintenance (NICE CG174)

Drug doses

• Enoxaparin doseBy indication, weight and creatinine clearance
• Opioid conversion24-hour dose to oral morphine equivalent
• Steroid equivalenceConvert to prednisolone-equivalent dose
• Gentamicin dosing weightIdeal and adjusted body weight for aminoglycosides