10 Random Questions
In a 35-year-old patient, which of the following is associated with an increased duration of clinical narcosis following infusion of a total dose of 10 mg/kg thiopental over three hours?
(A) Alcoholism in remission
(B) Asthma
(C) Fever
(D) Obesity
(E) Use of appetite suppressants
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Which of the following statements concerning successful blockade of the femoral nerve is true?
(A) It requires that a paresthesia be elicited prior to injection
(B) It provides motor blockade below the knee
(C) It is accomplished with an injection medial to the femoral artery
(D) It permits surgery for entrapment of the lateral femoral cutaneous nerve
(E) It provides anesthesia to the anterior thigh
Reveal Answer
Which of the following drugs is LEAST likely to cross the placenta?
(A) Lidocaine
(B) Meperidine
(C) Midazolam
(D) Thiopental
(E) Vecuronium
Reveal Answer
ADVANCED
Pharmacology & Pharmacokinetics
OB
Which of the following limits the use of nalbuphine for relief of postoperative pain?
(A) High incidence of nausea and vomiting
(B) High incidence of delayed respiratory depression
(C) Potential for inducing seizures with repeated doses
(D) Relatively low maximal analgesic effect
(E) Short duration of action
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
The most medial of the following components in the antecubital fossa is the
(A) brachial artery
(B) brachioradialis muscle
(C) cephalic vein
(D) median nerve
(E) radial nerve
Reveal Answer
BASIC
Regional & Pain
After tracheal extubation, a healthy 21-year-old man has a 30-second episode of laryngospasm with marked intercostal and sternal retractions, which are corrected with continuous positive airway pressure administered by mask. He now has dyspnea and tachypnea, and a roentgenogram of the chest shows diffuse bilateral interstitial edema. The most likely cause is increased
(A) airway reactivity
(B) intrapleural pressure
(C) left ventricular afterload
(D) right ventricular preload
(E) transpulmonary vascular pressure
Reveal Answer
BASIC
Respiratory & Critical Care
Desflurane is delivered using a vaporizer that contains internal heaters because
(A) heat decreases the drug's viscosity
(B) heat reduces thermal loss in the patient
(C) heat increases the drug's oil-gas partition coefficient
(D) heat prevents fluctuations of vapor pressure
(E) it does not vaporize adequately at room temperature
Reveal Answer
BASIC
Equipment & Physics
Pharmacology & Pharmacokinetics
Which of the following findings necessitates the preoperative insertion of a ventricular pacemaker in a 48-year-old man scheduled to undergo cholecystectomy?
(A) Atrial flutter with 3:1 atrioventricular block
(B) Bifascicular (right bundle branch block and left anterior hemiblock) block
(C) Left bundle branch block with first-degree atrioventricular block
(D) Second-degree (Mobitz I) atrioventricular block
(E) Second-degree (Mobitz II) atrioventricular block
Reveal Answer
ADVANCED
Cardiac
Which of the following is the strongest indication for one-lung ventilation?
(A) Descending thoracic aortic aneurysm
(B) Esophageal resection
(C) Lobectomy for lung abscess
(D) Lobectomy for tumor
(E) Pneumonectomy for tumor
Reveal Answer
Which of the following statements concerning the pharmacokinetics of local anesthetics is true?
(A) Decreased molecular weight is associated with decreased incidence of allergic reactions
(B) Decreased protein binding is associated with decreased systemic toxicity
(C) Increased ionization is associated with increased placental transfer
(D) Increased lipid solubility is associated with faster onset
(E) Presence of an ester linkage is associated with increased duration of action
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics