Induction Agents Flashcards
How long should it take for induction agents to work?
What is this the equivalent of?
10-20 seconds
1-2 arm-brain circulation times
What is the most common induction agent?
Propofol
What are 2 benefits of propofol?
Very good airway suppression
Lowers risk of PONV
What effect does propofol have on BP and HR?
Lowers both BP and HR
What are 2 cons of propofol?
Pain on injection (lipid-based)
Involuntary movements
What is thiopentone mainly used for?
Rapid sequence induction
What is a pro of thiopentone over propofol?
Faster acting than propofol
What are two benefits of thiopentone?
anti-epileptic properties
Protects the brain
What effect does thiopentone have on HR and BP
Increases HR, decreases BP
What condition is thiopentone contraindicated in?
Porphyria (metabolic disorder where not enough haem is produced)
What are the risks associated with thiopentone?
Rash/ bronchospasm
Intra-arterial injection–> thrombosis & gangrene
What is often the sole anaesthetic for short procedures?
Ketamine
What effect does ket have on HR and BP?
Rise in HR and rise in BP
What is the onset of ketamine?
90 seconds
What effect does ket have on the airway?
Bronchodilation
