10 Random Questions
Metoclopramide acts to
(A) block dopamine receptors
(B) decrease gastric acid production
(C) decrease lower esophageal sphincter tone
(D) delay gastric emptying
(E) facilitate central cholinergic stimulation
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Which of the following statements concerning carbon monoxide poisoning is true? A 38-year-old woman with a large goiter has undergone subtotal thyroidectomy. Airway obstruction is noted immediately after extubation despite normal vocal cord function on laryngoscopy. Which of the following is the most likely explanation?
(A) Arytenoid dislocation
(B) Hematoma
(C) Hypocalcemia
(D) Recurrent laryngeal nerve injury
(E) Tracheomalacia
Reveal Answer
ADVANCED
General
The central anticholinergic syndrome is LEAST likely to occur after administration of
(A) atropine
(B) chlorpromazine
(C) diphenhydramine
(D) glycopyrrolate
(E) scopolamine
Reveal Answer
A patient receives remifentanil 25 mcg just before retrobulbar block with 0.25% bupivacaine 4 mL. Over the next 10 minutes, he develops apnea and loses consciousness. Which of the following is the most likely explanation?
(A) Effects of remifentanil
(B) Injection of local anesthetic into cerebrospinal fluid
(C) Intravascular injection of local anesthetic
(D) Oculocardiac reflex
(E) Systemic absorption of local anesthetic
Reveal Answer
ADVANCED
Regional & Pain
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
Reveal Answer
Maximum current is delivered to the myocardium by a countershock for defibrillation when
(A) paddle contact pressure is minimal
(B) petroleum jelly is used under the paddles
(C) previous countershocks of the same power have been attempted
(D) the patient is grounded securely
(E) the shock is applied at the end of inspiration
Reveal Answer
BASIC
Equipment & Physics
The effect of neomycin at the neuromuscular junction is
(A) decreased by depolarizing relaxants
(B) partially reversed by calcium
(C) potentiated by anticholinesterases
(D) prevented by pretreatment with magnesium
(E) primarily prejunctional
Reveal Answer
ADVANCED
Pharmacology & Pharmacokinetics
Which of the following decreases dead space in an anesthetic circle system?
(A) Larger surface area of the expiratory unidirectional valve
(B) Placing a septum in the Y-piece
(C) Shorter expiratory limb tubing
(D) Smaller carbon dioxide absorber
(E) Smaller reservoir bag
Reveal Answer
BASIC
Equipment & Physics
Patients with acute alcohol intoxication are at increased risk for each of the following complications of general anesthesia EXCEPT
(A) aspiration of gastric contents
(B) hyperglycemia
(C) hypothermia
(D) ketoacidosis
(E) respiratory depression
Reveal Answer
ADVANCED
General
Which of the following statements concerning the use of epidural anesthesia for extracorporeal shock wave lithotripsy is true?
(A) Adequate anesthesia can be obtained with fentanyl alone
(B) Anesthesia decreases the incidence of hypothermia
(C) Anesthesia decreases the incidence of ventricular dysrhythmias
(D) Anesthesia is unnecessary in paraplegics with absence of sensation below T4
(E) "Loss of resistance" should be performed with fluids rather than air
Reveal Answer
ADVANCED
Regional & Pain