10 Random Questions
Which of the following interventions is most effective in preventing neurologic injury resulting from global cerebral ischemia?
- (A) Induction of barbiturate coma prior to ischemia
- (B) Maintenance of serum glucose concentration greater than 200 mg/dl prior to ischemia
- (C) Induction of hypothermia to a core temperature of 15 degrees C prior to ischemia
- (D) Maintenance of PaCO2 less than 25 mmHg following ischemia
- (E) Prevention of systemic hypertension following ischemia
Appropriate anesthetic management of a patient with hypertrophic cardiomyopathy includes each of the following EXCEPT
- (A) maintaining normal or slightly greater than normal preload
- (B) adjusting positive airway pressure to maintain near normal venous return
- (C) preference for volatile agents rather than opiates for anesthesia
- (D) use of beta-adrenergic blocking agents to increase ventricular wall compliance
- (E) decreasing afterload with peripheral vasodilators
A woman has weakness of the right quadriceps and a decreased knee jerk reflex on the right one day after forceps delivery under epidural anesthesia. The most likely cause is
- (A) epidural hematoma
- (B) intrapelvic nerve trauma
- (C) lithotomy positioning
- (D) reaction to the preservative in the anesthetic solution
- (E) trauma from the epidural needle
A 1100-g, 10-day-old infant is to undergo ligation of a patent ductus arteriosus after unsuccessful medical treatment. Within three minutes of intravenous administration of atropine 20 mcg, fentanyl 20 mcg, and pancuronium 0.1 mg, systemic blood pressure decreases from 80 to 30 mmHg, heart rate from 180 to 140 bpm, and arterial oxygen saturation from 90% to 80%. The most appropriate management is to
- (A) increase FiO2
- (B) administer additional atropine
- (C) infuse crystalloid
- (D) infuse prostaglandin E1
- (E) administer phenylephrine
A patient with chronic obstructive pulmonary disease is undergoing spinal anesthesia to a T6 sensory level. The most pronounced effect on pulmonary function will be a decrease in
- (A) minute ventilation
- (B) peak expiratory flow
- (c) physiologic dead space
- (D) tidal volume
- (E) vital capacity
Which of the following is the most sensitive indicator of impending renal failure following trauma?
- (A) Central venous pressure
- (B) Creatinine clearance
- (C) Fractional excretion of sodium
- (D) Hourly urine output
- (E) Urine osmolality
Which of the following statements concerning neuroleptic malignant syndrome is true?
- (A) It does not respond to dantrolene therapy
- (B) It is inherited as an autosomal trait
- (C) It is not triggered by succinylcholine
- (D) It occurs after long-term use of L-dopa
- (E) The halothane-caffeine contracture test is negative in susceptible patients
Compared with midazolam, diazepam has which of the following characteristics?
- (A) Greater solubility in water
- (B) Shorter beta half-life
- (C) More potent ventilatory depressant effect
- (D) Lower risk for thrombophlebitis
- (E) A pharmacologically active metabolite
Which of the following is the most likely adverse effect of prolonged intravenous administration of nitroglycerin?
- (A) Cyanmethemoglobinemia
- (B) Hemolysis
- (C) Methemoglobinemia
- (D) Neutropenia
- (E) Thrombocytopenia
The most likely explanation for the intraoperative capnographic tracing shown is
- (A) cardiac oscillation
- (B) exhaustion of soda lime
- (C) kinking of the endotracheal tube
- (D) partial recovery from vecuronium
- (E) presence of water droplets in the analyzer