10 Random Questions
An obese, 35-year-old man had an episode of coughing followed by vomiting during induction of anesthesia for arthroscopy of the left knee. Intense wheezing developed bilaterally over five minutes. PaO2 is 60 mmHg, PaCO2 is 42 mmHg, and pH is 7.35. Optimal management following intubation of the trachea includes
(A) mechanical ventilation with positive end-expiratory pressure (PEEP), cancellation of surgery, and transfer to the intensive care unit
(B) saline lavage and continuation of surgery using halothane anesthesia
(C) cancellation of surgery and administration of corticosteroids and antibiotics
(D) thorough suctioning and proceeding with halothane anesthesia
(E) cancellation of surgery, vigorous mechanical ventilation, thorough suctioning, and administration of aminophylline
Reveal Answer
BASIC
General
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
Reveal Answer
Which of the following correctly describes the anatomical location of the brachial plexus?
(A) Adjacent to the subclavian vein as it passes between the scalene muscles
(B) Between the middle and posterior scalene muscles
(C) Posterior to the first rib
(D) Posterior to the subclavian artery
(E) Posterior to the vertebral artery
Reveal Answer
BASIC
Regional & Pain
Which of the following statements concerning awareness (recall) during opioid anesthesia is true?
(A) It is usually not associated with pain
(B) It correlates well with intact auditory evoked responses
(C) It is prevented if the dose of opioid blocks the hemodynamic response to stimuli
(D) It is prevented if the dose of opioid is adequate to prevent movement without muscle relaxants
(E) It is predicted by a specific EEG pattern
Reveal Answer
BASIC
General
Maternal hyperventilation will result in
(A) increased umbilical blood flow
(B) decreased affinity of maternal hemoglobin for oxygen
(C) decreased maternal and fetal cardiac output
(D) increased placental transfer of oxygen
(E) increased fetal cerebral blood flow
Reveal Answer
A patient with end-stage renal disease has prolonged ventilatory depression after administration of morphine. The most likely cause is increased
(A) serum concentration of morphine-6-glucuronide
(B) elimination half-life of morphine
(C) opioid receptors
(D) receptor affinity
(E) volume of distribution
Reveal Answer
BASIC
Pharmacology & Pharmacokinetics
Which of the following statements concerning the choice of nitroprusside or nitroglycerin to induce deliberate hypotension is true?
(A) Nitroglycerin is more potent
(B) Nitroglycerin produces hypotension by acting on both arterial and venous capacitance vessels
(C) Nitroprusside produces less rebound hypertension on discontinuation
(D) The toxic effects of nitroprusside are independent of dose
(E) The therapeutic effects of nitroprusside may persist on discontinuation
Reveal Answer
Administration of magnesium sulfate for treatment of preeclampsia results in a decreased dose requirement for each of the following drugs EXCEPT
(A) bupivacaine
(B) halothane
(C) midazolam
(D) succinylcholine
(E) vecuronium
Reveal Answer
ADVANCED
OB
Which of the following will have the LEAST effect on the shape of the autoregulatory curve for cerebral blood flow?
(A) Isoflurane
(B) Nitroprusside
(C) Hypercarbia
(D) Essential hypertension
(E) Cerebral infarction
Reveal Answer
Recommendations for maximal allowable trace anesthesia gases are based on
(A) achievable levels with modern scavenging systems
(B) data from animal studies
(C) data on methionine synthetase levels in anesthesiologists
(D) evidence for an association with malignancy in anesthesiologists
(E) evidence for an association with spontaneous abortion In operating room personnel
Reveal Answer
BASIC
Equipment & Physics