10 Random Questions
Which of the following is most responsible for the duration of action of local anesthetics?
- (A) Concentration
- (B) Metabolism
- (C) Molecular weight
- (D) Tissue protein binding
- (E) Volume injected
The induction dose of thiopental should be decreased in each of the following situations EXCEPT
- (A) age greater than 70 years
- (B) cardiogenic shock
- (C) decreased hepatic blood flow
- (D) hypoalbuminemia
- (E) hypothyroidism
Preoperative parenteral administration of vitamin K is LEAST likely to decrease a prolonged prothrombin time in a patient with
- (A) end-stage hepatocellular disease
- (B) malabsorption associated with ulcerative colitis
- (C) obstructive jaundice
- (D) long-term antibiotic therapy
- (E) warfarin-induced prothrombin deficiency
Which of the following statements concerning the pharmacokinetics of nondepolarizing muscle relaxants is true?
- (A) Drugs with a longer duration of action depend on the liver for excretion
- (B) Drugs with a shorter duration of action depend primarily on redistribution for recovery
- (C) Onset of action is independent of dose
- (D) Recovery rate parallels the decrease in plasma relaxant concentration
- (E) The shorter the duration of action, the faster the onset
A previously healthy 28-year-old woman scheduled for laparoscopic tubal ligation becomes, agitated and refuses to undergo the procedure after being brought to the operating room. This behavior most likely resulted from preoperative administration of
- (A) droperidol
- (B) cimetidine
- (C) atropine
- (D) meperidine
- (E) midazolam
Spontaneously breathing enflurane at 1 MAC causes increased
- (A) airway resistance
- (B) diaphragm function
- (C) carbon dioxide production
- (D) intercostal muscle function
- (E) physiologic dead space
During open reduction of a tibial fracture, a tourniquet cuff is applied around the proximal thigh and inflated to 300 mmHg. Which of the following is most likely to prevent pain and hypertension caused by the tourniquet?
- (A) Intravenous administration of fentanyl during subarachnoid block
- (B) Lumbar sympathetic block
- (C) Spinal anesthesia to a T6 sensory level
- (D) Obturator nerve block
- (E) General anesthesia
Nitrous oxide is contraindicated during
- (A) injection of sulfur hexafluoride for retinal tamponade
- (B) repair of open eye injury
- (C) scleral buckling with synthetic bands
- (D) strabismus surgery
- (E) trabeculectomy for glaucoma
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
Which of the following time concentration curves would be expected in arterial blood following intravenous injection of indocyanine green dye in a 3-year-old child with a small ventricular septal defect?
