CRNA CRNA Pharmacology and Anesthesia Agents

Question 1

Which inhalational anesthetic agent has the lowest blood-gas partition coefficient, resulting in the fastest induction and emergence?

Accepted Answer

Desflurane

Answer

Isoflurane

Answer

Sevoflurane

Answer

Halothane

Question 2

A patient receives succinylcholine and develops masseter muscle rigidity followed by rapidly rising temperature. What is the most likely diagnosis?

Accepted Answer

Malignant hyperthermia

Answer

Neuroleptic malignant syndrome

Answer

Serotonin syndrome

Answer

Thyroid storm

Question 3

Which opioid is most appropriate for a patient with renal failure requiring intraoperative analgesia due to its lack of active metabolites?

Accepted Answer

Remifentanil

Answer

Morphine

Answer

Meperidine

Answer

Hydromorphone

Question 4

What is the mechanism of action of neostigmine used for reversal of neuromuscular blockade?

Accepted Answer

Acetylcholinesterase inhibition

Answer

Nicotinic receptor agonism

Answer

Muscarinic receptor antagonism

Answer

Competitive antagonism at the neuromuscular junction

Question 5

Which benzodiazepine is preferred for IV sedation due to its water solubility and lack of pain on injection?

Accepted Answer

Midazolam

Answer

Diazepam

Answer

Lorazepam

Answer

Triazolam

Question 6

A patient on a MAO inhibitor requires opioid analgesia. Which opioid should be strictly avoided due to risk of serotonin syndrome?

Accepted Answer

Meperidine

Answer

Fentanyl

Answer

Morphine

Answer

Hydromorphone