Modern Anesthesia
Simulator, calculators and references. Free, in the browser.
Explains concepts and points to the calculators. It does not give doses — the tools do, with their sources.
Enter once — every calculator opens with these numbers in.
Tools
Virtual Monitor Simulation
Patient monitor on the big screen, driven from your phone.
HR 74 · SpO₂ 98 · BP 124/76
Infusion Rate & Dilution
µg/kg/min ⇄ ml/hr, with standard dilutions.
Noradrenaline 4 mg/50 ml → 80 µg/ml
Body Weight & Dosing
IBW, LBW, ABW, BSA — and which weight each drug uses.
70 kg · 175 cm → IBW 70.5 kg
Fluids & Blood Loss
Maintenance, fasting deficit, blood volume, allowable loss.
70 kg → 110 ml/hr maintenance
Preoperative Risk Scores
Apfel, STOP-BANG and RCRI on one screen.
Apfel 4 → 79 % PONV risk
MAC by Age
Age-corrected MAC, MAC-awake and nitrous additivity.
Sevoflurane at 70 yr → 1.55 %
O₂ Cylinder Duration
Minutes left from gauge pressure and flow.
E at 1000 psi, 10 L/min → 33 min
Unit & Concentration
Percent, ratio strengths, µg/mg, gauge sizes.
1:200,000 → 5 µg/ml
Drug Dose Calculator
Induction, relaxants, opioids and emergency boluses by weight.
70 kg → propofol 105–175 mg
Local Anaesthetic Max Dose
Mixtures, adrenaline, and the LAST lipid rescue.
Lidocaine plain → 200 mg max
Paediatric Emergency Card
Tube, blade, joules and drugs by age or weight.
10 yr → ETT 6.5 · defib 120 J
Coming soon
AI AssistantPerioperative questions, answered.
Rhythm TrainerName the rhythm from a live trace.
Crisis Cognitive AidsMH, anaphylaxis, CICO — stepped.
Capnography LibraryAnimated traces and what they mean.
ABG InterpreterStepwise acid–base practice.
Difficult Airway (DAS)Plan A to D, with attempt counters.
Equations FlashcardsPhysics and pharmacokinetics for vivas.
MCQ BankTopic-wise, with explanations.