sedatives and anaesthetics Flashcards
name 2 commonly IV anaesthetics
Propofol
Thiopental
what is ketamine?
IV anaesthetic commonly used in children and for short, painful procedures
what is desflurane?
common anaesthetic (inhaled)
possible side effects of desflurane?
laryngospasm
apnea
what are the factors affecting onset of GA?
- lipid solubility
- blood-gas coefficient
what is the first line of treatment for anxiety?
SSRIs
Thiopentone has a short half-life due to:
a. Increased renal clearance
b. Redistribution in muscle and fat
c. Potent bonding with plasma proteins
d. Rapid metabolism
b. Redistribution in muscle and fat
Which of the following general anaesthetics has the fastest induction time?
a. Desflurane
b. Midazolam
c. Thiopentone
d. Methoxyflurane
c. thiopentone
Which of the following is incorrect?
a. MAC is inversely proportional to blood-gas coefficient
b. Nitric oxide is more soluble in blood than methoxyflurane
c. Ketamine is used for short, painful procedures
d. Midazolam provides conscious sedation
b. Nitric oxide is more soluble in blood than methoxyflurane
Which is an incorrect statement about IV general anaesthetics?
a. work in seconds
b. are given intravenously
c. are good for maintaining anaesthesia
d. work to induce anaesthesia
c. are good for maintaining anaesthesia
Which is an IV general anaesthetic that is used either for induction of anaesthesia or for short painful procedures?
a. propofol
b. thiopental
c. ketamine
c. ketamine
I am used for conscious sedation, to treat insomnia, as well as to treat anxiety.
a. benzodiazepines
b. inhaled general anaesthetics
c. barbiturates
d. propofol
a. benzodiazepines
Which statement is correct about inhaled general anaesthetics?
a. The lower the solubility of a drug, the higher the blood to gas coefficient, and the longer it takes to act
b. The higher the solubility of a drug, the lower the blood to gas coefficient, and the longer it takes to act
c. The higher the solubility of a drug, the higher the blood to gas coefficient, and the longer it takes to act
d. The higher the solubility of a drug, the higher the blood to gas coefficient, and the quicker it takes to act
c. The higher the solubility of a drug, the higher the blood to gas coefficient, and the longer it takes to act
Which one of these inhaled general anaesthetics is not indicated for maintaining anaesthesia? (it is more indicated for analgesia in sub-anaesthetic doses as it is highly potent but very slow acting)
a. methoxyflurane
b. desfluorane
c. isoflurane
d. sevoflurane
a. methoxyflurane
Midazolam (benzodiazapene) is the shortest acting with strongest sedation
true or false
true
