Respiration	Other injuries
• Airway safe?	• Cervical spine, chest, ribs?
• Intubation and ventilation required?	• Pneumothorax?
• Sedation, analgesia, and paralysis adequate?	• Bleeding—intrathoracic or abdominal?
• Arterial oxygen pressure >13 kPa? saturation>95%?	• Long bone or pelvic fractures?
• Arterial carbon dioxide pressure 4-5 kPa? (fit young adult)	• Adequate investigation?
Circulation	• Adequate treatment?
• Systolic blood pressure	Monitoring
>120 mm Hg?	• Electrocardiography?
• Heart rate <120 beats/min?	• Pulse oximetry?
• Perfusion OK?	• Blood pressure?
• Intravenous access adequate?	• End tidal carbon dioxide pressure?
• Circulating volume replaced?	• Temperature?
• Blood needed?	• Central venous pressure, pulmonary artery pressure, or intracranial pressure needed?
• Urine volumes?	Investigations
• Continuing bleeding? Site?	• Blood gases, biochemistry, and haematology sent?
Head	• Correct radiographs taken?
• Glasgow coma score? Trend?	• What else is needed? computed tomography, peritoneal lavage, laparotomy?
• Focal signs?
• Pupillary response?
• Skull fracture?