OT Simulator

Practise a general anaesthetic on a synthetic patient: give the drugs, manage the airway and ventilator, and watch a live monitor respond.

  • Elective GA Start here

    Read the patient at pre-op and run the sign-in, then take over an anaesthetic already under way: keep the patient asleep and stable through the operation, then wake them.

    Guided · about 15 minutes

  • Free run

    A healthy adult, awake on the monitor. Do the whole anaesthetic yourself: pre-oxygenate, induce, secure the airway, ventilate and maintain.

    Open-ended · every control

How it works

  1. The monitor shows what a real one would: ECG, SpO₂, EtCO₂, blood pressure (NIBP every 5 minutes), temperature and train-of-four.
  2. The tabs under it are your hands: Drugs, Circulation, Breathing, Airway, Patient (stimuli, the operation, rhythm, resuscitation), Examine, Help and Log.
  3. Time runs at 1x; use 5x or 20x to skip the quiet parts, or pause.
  4. Alarms appear as a coloured bar on the monitor. Behind the monitor, under the tabs, shows what is happening inside the patient.

Teaching only. The patient is synthetic and the numbers are a model, not clinical advice.

← Library

Pre-op

Read the patient over, then run the theatre checklist before you start. Nothing is enforced here — it is a briefing.

Synthetic patient

Sign in (before induction)

    Begin the anaesthetic →

    Teaching only. The patient is synthetic and the numbers are a model, not clinical advice.

    Theatre

    Library
    00:00simulated time
    II
    HR--/min
    Pleth
    SpO2--%
    CO2 0–50 mmHg
    EtCO2--mmHgRespiratory rate RR --
    NIBP mmHg--/--
    Agent Fi/Et/MAC--
    Paw cmH₂O--PEEP -- · MV --
    TOF4/4
    Temp--°C
    How to use · a first anaesthetic

    Set the speed to 5x for the quiet parts. In Free run:

    1. Breathing: 100% oxygen for about 3 minutes (pre-oxygenation).
    2. Drugs: fentanyl 100 mcg, propofol 140 mg, then rocuronium 40 mg once the patient no longer answers.
    3. Airway: Laryngoscopy, then Intubate (tracheal). A CO₂ trace on the monitor confirms the tube.
    4. Breathing: Volume control, Set ventilator. Then fresh gas O₂ 4 L/min with sevoflurane 4% until the monitor's MAC reads about 0.8 (around 5 minutes), then sevoflurane about 2% at 2 L/min. If the blood pressure sags after induction, phenylephrine 50–100 mcg is on Circulation.
    5. Patient: Start operation. Keep heart rate and blood pressure steady as the stimulus rises (more fentanyl or sevoflurane).
    6. To finish: sevoflurane off, sugammadex 140 mg, extubate when the patient is breathing and awake.

    In Elective GA the patient is already asleep and ventilated: start at step 5. Check Examine and the Log as you go.

    Fluids and blood

    Oxygen

    Ventilator

    Fresh gas and vaporiser

    L/min

    Secure the airway on the Airway tab before you ventilate; a CO₂ trace on the monitor confirms a tracheal tube.

    A natural airway obstructs as the patient deepens or is paralysed — relieve it with a manoeuvre or a device. Laryngoscopy shows this patient's view (hidden until you look). Capnography (EtCO2 on the monitor) confirms a tracheal tube; an oesophageal tube shows no CO2.

    Open the airway

    Device

    Laryngoscopy and intubation

    Stimulate

    Try a one-off stimulus and watch for movement and the autonomic response (heart rate and blood pressure), or run the operation below.

    Operation

    A standard operation's surgical stimulus over time: incision, steady surgery, a strongly-stimulating phase, then closing. Start it, then let it run or skip step by step — keep the patient asleep and still as the stimulus rises and falls.

    Not started.

    Rhythm

    Impose a heart rhythm (the scenarios will do this for you). The circulation responds: the fast and poorly-filled rhythms drop the output, and VF, torsades, asystole and PEA make no pulse.

    Resuscitation

    Chest compressions make a fraction of the normal output (watch EtCO2 and the pressure); defibrillation can convert a shockable rhythm (VF, VT, torsades); transcutaneous pacing drives the heart once the current reaches this patient's capture threshold.

    Events

    1. Nothing yet

    Examine the patient at the bedside. The findings are read from the model, so they match the monitor and change as the case does.

    Get help and tell the team. These are recorded in the events list (and the debrief); in a crisis they are the first things to do.

    Everything that has happened, newest first: drugs, airway and ventilator, fluids, rhythm and resuscitation, the operation, NIBP readings, alarms and the patient's responses.

    1. Nothing yet
    Behind the monitor

    Teaching only: the patient is synthetic and the numbers come from a model, not clinical advice.