Passmed: Anaesth Flashcards
What ops require G+S beforehand?
Thyroidectomy, lap chole, appendicectomy, elective c/s, hysterectomy
What ops require XM 2 units beforehand?
Salpingectomy + THR
What ops require XM 4-6 units beforehand?
Elective AAA repair, upper GI surg, hepatectomy, cystectomy, oophorectomy
Where is IO access typically undertaken?
Anteromedial aspect of proximal tibia
How is local anaesthetic toxicity treated?
IV 20% Lipid Emulsion
What are CIs to adding adrenaline to locals?
Pt on TCA or MAOI
What are the causative agents for malignant hyperthermia?
Halothane
Suxamethonium
Antipsychotics
Tx for Malignant Hyperthermia
IV Dantrolene
IV Induction Agents
Sodium Thiopentone - rapid sequence of induction
Etomidate - short acting agent w no analgesic properties
Propofol - GABA receptor agonist used for inducing and maintaining
Ketamine - NMDA receptor antagonist used if haemodynamically unstable
Muscle Relaxants
Suxamethonium - depolarising
Rocuronium - non depolarising
What is the CI to suxamethonium?
Any penetrating eye injuries or acute narrow angle glaucoma as it inc IOP
What is used to reverse muscle relaxants?
Neostigmine 2.5mg + Glycopyrronium 500mcg
The first is an anticholinesterase inhibitor whilst the latter inhibits ACh to reduce SEs
Which drugs are classically used as an antiemetic at the start/end of an op?
At the start dexamethasone then ondansetron at the end
What are the two benefits of fentanyl?
Pain control AND it reduces the amount of gas required for induction
What drugs will you find in the emergency tray?
Epinephrine: cardiac arrest, anaphylaxis, bronchospasm
Amiodarone: arrhythmia
Atropine: bradycardia
Ephedrine: hypotension
Hydralazine: hypertension
