#1
Which drug is commonly used for induction of anesthesia?
Propofol
ExplanationRapid onset and short duration make it ideal for induction.
#2
What is the purpose of preoperative fasting before surgery?
To prevent aspiration of gastric contents
ExplanationReduces risk of aspiration pneumonia during anesthesia.
#3
What is the primary purpose of using a laryngeal mask airway (LMA) during anesthesia?
To maintain an open airway and assist ventilation
ExplanationProvides a patent airway without endotracheal intubation.
#4
What is the primary role of the anesthesiologist in the perioperative period?
Managing anesthesia and ensuring patient safety
ExplanationOversees patient care and anesthesia administration.
#5
What is the primary goal of intraoperative fluid management?
To maintain intravascular volume and tissue perfusion
ExplanationPrevents hypovolemia and maintains organ perfusion.
#6
What is the purpose of endotracheal intubation during surgery?
To maintain an open airway and assist breathing
ExplanationEnsures airway patency and facilitates ventilation.
#7
Which of the following anesthetic agents is an inhalational anesthetic?
Isoflurane
ExplanationAdministered via inhalation, providing anesthesia.
#8
Which organ is primarily responsible for metabolizing most anesthetic agents?
Liver
ExplanationMetabolizes anesthetics into inactive forms for elimination.
#9
Which of the following is a common side effect of opioid analgesics used in the perioperative period?
Respiratory depression
ExplanationDepresses respiratory drive, requiring monitoring.
#10
Which of the following medications is commonly used for postoperative nausea and vomiting (PONV) prophylaxis?
Ondansetron
ExplanationBlocks serotonin receptors to prevent emesis.
#11
Which of the following is a potential complication of neuraxial anesthesia?
Hypotension
ExplanationLeads to vasodilation and decreased preload.
#12
What is the primary function of a neuromuscular blocking agent during surgery?
To relax skeletal muscles
ExplanationFacilitates intubation and surgical exposure by inducing paralysis.
#13
What is a potential complication of malignant hyperthermia during anesthesia?
Hyperkalemia
ExplanationResult of muscle breakdown, leading to potassium release.
#14
Which of the following is an advantage of regional anesthesia over general anesthesia?
Lower risk of nausea and vomiting
ExplanationMinimizes postoperative nausea and vomiting due to reduced systemic effects.
#15
What is the role of a peripheral nerve stimulator in anesthesia?
To monitor neuromuscular blockade
ExplanationAssesses degree of muscle relaxation during surgery.
#16
What is the primary mechanism of action of local anesthetics?
Blocking sodium channels
ExplanationInhibits nerve conduction by blocking sodium influx.
#17
Which of the following statements regarding spinal anesthesia is TRUE?
It can be used for both surgical anesthesia and postoperative pain management
ExplanationSuitable for various procedures and offers prolonged analgesia.