10 Random Questions

Neuro

A patient suddenly makes a respiratory effort during craniotomy for clipping of a cerebral aneurysm in a 15-degree head-up position with controlled ventilation. The most likely cause is


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Neuro

Massive venous air embolism occurs in a patient who is undergoing craniotomy in the sitting position with nitrous oxide, oxygen, fentanyl anesthesia. Which of the following changes in end-tidal (ET) concentrations of carbon dioxide, nitrogen, and nitrous oxide are most likely in this patient? (ETCO2, ETN2, ETN2O)


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Which of the following is a characteristic of VVI pacemakers?


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Pharmacology & Pharmacokinetics

Which of the following conditions is a contraindication to the use of succinylcholine?


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General

Which of the following findings on the left is most likely to be associated with an increased risk of complications with cannulation of the left internal jugular vein compared with cannulation of the right internal jugular vein?


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Pharmacology & Pharmacokinetics Neuro

Which of the following drugs increases cerebral blood flow while decreasing cerebral metabolic rate?


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General

A 70-year-old man with mild hypertension and aortoiliac occlusive disease is undergoing aortofemoral bypass grafting. Which of the following interventions is most effective in maintaining renal perfusion during infrarenal aortic clamping?


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Equipment & Physics

Which of the following combinations of anesthetic and incorrect vaporizer results in the smallest error in delivered concentration?


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In which of the following clinical circumstances does down-regulation of beta-adrenergic receptors occur?


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Neuromuscular blockade of the diaphragm is best ensured by monitoring which of the following peripheral muscles?


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