10 Random Questions
The use of glycine as irrigating solution during transurethral resection of the prostate could be associated with each of the following EXCEPT
- (A) ammonia toxicity
- (B) coma
- (C) hemolysis
- (D) hyponatremia
- (E) transient blindness
A 30-year-old woman develops urticaria immediately after administration of 2% 2-chloroprocaine for removal of a nevus on the chest wall. This reaction resolves with administration of diphenhydramine and the surgery is rescheduled. During the second procedure, a field block is performed using 10 ml of 1% lidocaine from a multidose vial. Within 10 minutes the patient develops urticaria and wheezing and has difficulty breathing. These symptoms resolve with administration of epinephrine. Which of the following substances is the most likely cause of these reactions?
- (A) A paraben derivative
- (B) Povidone-iodine
- (C) Ethylenediaminetetraacetic acid (EDTA)
- (D) Propylene glycol
- (E) Sodium bisulfite
Monitoring sensory evoked potentials may be useful in detecting functional derangement of each of the following EXCEPT
- (A) cranial nerve pathways during posterior fossa operations
- (B) motor pathways during anterior cervical discectomy
- (C) dorsal column pathways during operations for spinal tumors
- (D) visual pathways during operations on the sphenoid wing
- (E) cortical pathways during carotid artery operations
Which of the following statements concerning metoclopramide is true?
- (A) It is antagonized by concomitant administration of atropine
- (B) It decreases gastrointestinal motility
- (C) It decreases gastric secretion
- (D) It lacks antiemetic properties
- (E) It stimulates dopamine receptors
A 27-year-old man with type I von Willebrand's disease requires internal fixation of an open fracture of the femur. Prothrombin time, partial thromboplastin time, and platelet count are normal. During surgery, there is significant oozing from the wound and the surgeon notes poor clot quality. The most appropriate therapy at this time is administration of
- (A) cryoprecipitate
- (B) desmopressin
- (C) fresh frozen plasma
- (D) lyophilized factor VII concentrate
- (E) platelets
In which of the following clinical circumstances does down-regulation of beta-adrenergic receptors occur?
- (A) Chronic congestive heart failure
- (B) Hypothyroidism
- (C) Long-term clonidine administration
- (D) Long-term metoprolol administration
- (E) Stable angina
The alveolar concentrations of anesthetics increase more rapidly in children than in adults because of a greater
- (A) blood volume (per kg body mass)
- (B) cardiac index
- (C) MAC
- (D) ratio of alveolar ventilation to functional residual capacity
- (E) tidal volume (per kg body mass)
A mechanically ventilated newborn infant is undergoing gastroschisis repair during halothane anesthesia. Based on the right radial artery catheter tracing shown, which of the following is the most appropriate conclusion?
- (A) The abdomen has not yet been incised
- (B) The anesthetic should be changed from halothane to isoflurane
- (C) The ductus arteriosus is still open
- (D) The infant is hypovolemic
- (E) The tidal volume is inadequate
Left ventricular end-diastolic volume is most likely to be underestimated by pulmonary artery occlusion pressure in patients with
- (A) acute myocardial ischemia
- (B) aortic insufficiency
- (C) mitral stenosis
- (D) primary pulmonary hypertension
- (E) tricuspid stenosis
Each of the following contributes to hypotension following induction of anesthesia with propofol EXCEPT
- (A) central vagal stimulation
- (B) decreased central sympathetic tone
- (C) direct myocardial depression
- (D) resetting of arterial baroreceptors
- (E) systemic vasodilation