35 year patient with a fracture dislocation of the ankle, with no pedal pulse. ASA 1.
— PMH: nil, meds / nil


A  Clear & self maintaining

B  Rate 15, SpO2 98%

C – Pulse 96, BP 120/75

D – E4 V5 M6 pupils equal

E – Temp 35.9°C

Clinical Findings

  • Mallampati 1

  • No loose teeth, caps or crowns

  • Deformed ankle – pulseless/skin tenting

Why We Simulated

Procedural sedation is an important skill for those working in the Emergency Department, it enables us to perform a number of short and painful procedures that would otherwise not be tolerated. There are a number of studies showing that the use of sedation in the ED is safe (Bellolio et al 2016 and Newstead et al 2013).

However there are complications to consider such as hypoxia, apnoea, laryngospasm, or the need for advanced airway intervention. This simulation is designed for the patient to become apnoeic and to desaturate with time.

In order to make sedation as safe as possible it is important to consider these and adequately prepare prior to the procedure. This can be helped by having a local policy or guideline to follow. It is also worth asking yourself the following:

  1. Is the procedure appropriate for sedation? Is it a short procedure? Will it be painful?

  2. Is there an alternative solution? e.g. local anaesthetic to reduce a dislocated shoulder?

  3. Is the patient safe for sedation? Consider ASA grading, body habitus, intoxication or fasting status.

  4. What is their airway like? Mallampati, neck movement, 3/3/2 assessment or Dentition.

  5. Are the appropriate staff available? Sedationist, proceduralist, nurse or runner.

  6. Is the correct monitoring available? ECG, waveform capnography, NIBP or pulse oximeter.

  7. Do you have the necessary equipment? Airway equipment, tilting trolley, suction or rescue drugs.

  8. What will you do if things go wrong? DAS algorithm, who are you going to call?


Further Reading:

Learning Outcomes

  • Antidotes are available in the 1st drawer in all Resus bays.

  • Remember to make checks before beginning.

  • This is a never event and will require reporting.

Positive Feedback

  • Use of the pro forma.

  • Identified that this was a critical incident.

  • Gained consent from the patient prior to sedation.