10 Random Questions
A sedative/hypnotic drug is administered prior to electroconvulsive therapy to do which of the following?
- (A) Potentiate the effect of succinylcholine
- (B) Provide amnesia for the electrical stimulus
- (C) Decrease the current required to produce a grand mal seizure
- (D) Increase seizure duration
- (E) Control postictal sympathetic response
During apneic oxygenation (FiO2 1.0) through a rigid bronchoscope
- (A) duration of the procedure is limited by the increase in PaCO2
- (B) functional residual capacity decreases 5%/min
- (C) PaO2 remains unchanged for the first 5 minutes
- (D) PaCO2 increases 2 to 6 mmHg/min for 15 minutes and then reaches a plateau
- (E) PaO2 and PaCO2 equilibrate with mixed venous gases at the same rate
Surgery is cancelled 10 minutes after initiation of intravenous regional anesthesia with 50 ml of lidocaine 0.5%. To terminate anesthesia safely, what is the most appropriate timing for deflating the tourniquet?
- (A) Immediately if benzodiazepines have been administered
- (B) Immediately after intravenous administration of ephedrine 10 mg
- (C) Immediately, followed by repeated reinflation and deflation
- (D) In no less than 20 minutes after initial injection
- (E) In no less than 45 minutes after initial injection
Which of the following drugs exerts a vasoconstrictor effect by blocking the reuptake of norepinephrine at the neuronal synapse?
- (A) Cocaine
- (B) Dopamine
- (C) Ephedrine
- (D) Metaraminol
- (E) Phenylephrine
Compared with general anesthesia, epidural anesthesia for hip arthroplasty is associated with
- (A) decreased incidence of perioperative myocardial ischemia
- (B) decreased intraoperative blood loss
- (C) decreased risk for acute renal failure
- (D) increased risk for stress-induced hyperglycemia
- (E) increased thromboembolic complications
In the absence of coronary artery disease, isoflurane-induced vasodilation and tachycardia are beneficial hemodynamic goals for which of the following cardiac diseases?
- (A) Aortic regurgitation
- (B) Aortic stenosis
- (C) Asymmetric septal hypertrophy (IHSS)
- (D) Mitral stenosis
- (E) Pulmonary regurgitation
In a patient who has undergone cholecystectomy, which of the following is the most likely pulmonary effect of systemically administered opioids?
- (A) Decreased Qs/Qt
- (B) Decreased dead space
- (C) Restored vital capacity
- (D) Restored functional residual capacity
- (E) Shift of the carbon dioxide response curve to the right
During halothane anesthesia with spontaneous ventilation, the most reliable sign of malignant hyperthermia is
- (A) hypertension
- (B) increased temperature
- (C) increased minute ventilation
- (D) muscle rigidity
- (E) tachycardia
Cessation of smoking on the day prior to an operation is associated with a perioperative
- (A) decrease in carbon monoxide in blood
- (B) improvement in ciliary beating in the airways
- (C) decrease in sputum volume
- (D) decrease in the need for postoperative ventilatory support
- (E) decrease in the risk of deep vein thrombosis
The tracing indicates that the pacemaker generator is
- (A) malfunctioning
- (B) VVT sensing and capturing normally
- (C) VOO sensing and capturing normally
- (D) DVI sensing and capturing normally
- (E) VVI sensing and capturing normally