#1
Which of the following drugs is commonly used for induction of anesthesia?
Propofol
ExplanationCommonly used for induction due to its rapid onset and short duration of action.
#2
Which of the following is a typical side effect of opioid analgesics?
Respiratory depression
ExplanationCommon side effect due to depression of the respiratory center in the brainstem.
#3
Which of the following monitoring parameters is NOT typically used during general anesthesia?
Blood glucose level monitoring
ExplanationBlood glucose monitoring is not typically part of routine intraoperative monitoring during general anesthesia.
#4
What is the most common complication associated with regional anesthesia?
Hypotension
ExplanationDue to sympathetic blockade leading to vasodilation and decreased systemic vascular resistance.
#5
Which of the following is a potential complication of epidural anesthesia?
Spinal headache
ExplanationCaused by leakage of cerebrospinal fluid through a puncture hole in the dura mater.
#6
What is the primary advantage of using total intravenous anesthesia (TIVA) over volatile anesthetics?
Less cardiovascular depression
ExplanationTIVA provides more stable cardiovascular effects compared to volatile anesthetics.
#7
What is the primary function of neuromuscular-blocking drugs during anesthesia?
Muscle relaxation
ExplanationUsed to facilitate endotracheal intubation and provide muscle relaxation during surgery.
#8
Which of the following is NOT a commonly used inhalational anesthetic?
Midazolam
ExplanationMidazolam is a benzodiazepine used for sedation and anxiety, not for inhalational anesthesia.
#9
Which of the following drugs is a reversal agent for benzodiazepines?
Flumazenil
ExplanationCompetitive antagonist at the benzodiazepine receptor, reversing the sedative effects.
#10
What is the primary effect of volatile anesthetics on the cardiovascular system?
Vasodilation
ExplanationLeads to decreased systemic vascular resistance and potentially hypotension.
#11
Which of the following is a sign of malignant hyperthermia?
Hyperthermia
ExplanationCharacterized by a rapid rise in body temperature, muscle rigidity, and other systemic effects.
#12
What is the mechanism of action of non-depolarizing neuromuscular-blocking agents?
Blockade of acetylcholine receptors
ExplanationCompetitively block the binding of acetylcholine to nicotinic receptors at the neuromuscular junction.
#13
What is the mechanism of action of dexmedetomidine?
Alpha-2 adrenergic agonist
ExplanationActs as a sedative and analgesic by binding to alpha-2 adrenergic receptors in the brain.
#14
Which of the following is a characteristic of local anesthetics?
Reversibly block nerve conduction
ExplanationBy inhibiting the influx of sodium ions through sodium channels in nerve cell membranes.
#15
Which of the following is a feature of balanced anesthesia?
Use of multiple anesthetic agents
ExplanationCombines drugs from different classes to achieve anesthesia with minimal side effects.
#16
Which of the following is a potential complication of general anesthesia in the elderly population?
Delirium
ExplanationElderly patients are more prone to postoperative delirium due to various factors.
#17
Which of the following is a common adverse effect of volatile anesthetics?
Hypotension
ExplanationCan cause hypotension due to vasodilation and myocardial depression.