Flashcards in Anaesthetics Deck (20)
When is an oropharyngeal airway useful? What are its advantaged?
Most often as a bridge to a definitive airway
Easy to insert
No paralysis required
When is a laryngeal mask airway used? What are its advantages?
Easy to insert
Usually no paralysis required
When is a tracheostomy done? What are its advantages?
Slow weaning of airway
Reduces work of breathing and dead space
When is an endotracheal tube used? What are its advantages?
Long/short -term ventilation
Provides optimal control of airway
List the main IV anaesthetic agents used
Which IV anaesthetic has anti-emetic property?
Which IV anaesthetic can come with a "hangover" effect due to build up of metabolites?
Which IV anaesthetic has the greatest analgesic effect?
List the main inhalational anaesthetic agents used
Which inhalational anaesthetic carries a risk of hepatotoxicity?
List colour of cannulae from largest to smallest flow rate (biggest to smallest)
What is malignant hyperthermia?
Hyperpyrexia and muscle rigidity seen following administration of anaesthetics
What is the pathophysiology of malignant hyperthermia?
Excess release of Ca from SR of skeletal muscle
Which drug is given to counteract malignant hyperthermia?
List the main muscle relaxants (NM blockers) used
Which muscle relaxant is depolarising and which are non-depolarising?
Non-polarising: vecuronium, atracurium, pancuronium
Which muscle relaxant has the fastest onset and shortest duration of action?
When are nasopharyngeal airways appropriate/well-tolerated?
NOT in base of skull fracture
List early (0-5 days) causes of post-op pyrexia
Urinary tract infection