Safe Sedation Procedures in the Emergency Department
Introduction
Procedural sedation in the ED produces a controlled, temporary depression of consciousness to allow painful or anxiety‑provoking procedures while preserving airway reflexes, ventilation and cardiovascular stability as far as possible. Safe practice depends on standardised pre‑sedation assessment, appropriate agent selection and dosing, continuous physiological monitoring (including capnography when available), immediate access to rescue equipment and staff competent in airway management and resuscitation (RCEM; Resuscitation Council UK; NICE CG112).
Common indications
- Fracture or dislocation reduction.
- Laceration repair.
- Incision and drainage of abscesses.
- Lumbar puncture and other painful diagnostic procedures.
- Dressing changes (e.g. burns).
- Electrical cardioversion.
The sedation continuum Sedation exists on a spectrum - select the minimum depth required for the procedure and patient:
- Minimal (anxiolysis): alert and responsive to verbal stimuli.
- Moderate (conscious sedation): sleepy but responds to verbal or light tactile stimulation; airway usually maintained.
- Deep: not easily aroused; spontaneous ventilation and airway reflexes may be impaired.
- General anaesthesia: unarousable; airway and ventilation not reliably maintained.
Dissociative sedation (ketamine) produces analgesia and amnesia with a dissociative state. Airway reflexes and respiratory drive are often preserved but respiratory compromise can still occur and must be anticipated (RCEM).