10 Random Questions


Perception of pain from cutaneous sources involves each of the following EXCEPT

BASIC Regional & Pain

A 67-year-old man undergoes spinal anesthesia with hyperbaric tetracaine 10 mg for transurethral resection of the prostate. At the end of the 50-minute procedure, the level of anesthesia is T6 and blood pressure is 120/70 mmHg. Within two minutes after transfer to a stretcher, the patient has nausea and blood pressure decreases to 76/42 mmHg. Which of the following is the most likely cause of the acute hypotension?

BASIC Regional & Pain

Metoclopramide

ADVANCED Pharmacology & Pharmacokinetics

A patient who is receiving ventilatory support after coronary artery bypass grafting has a PaO2 of 132 mmHg, a PaCO2 of 19 mmHg, and a pH of 7.57. Which of the following is most likely to result from this level of hypocarbia?

ADVANCED Neuro Cardiac

During frontal craniotomy for removal of an astrocytoma, the surgeon notes that the brain is "tight." The patient is receiving nitrous oxide 50% in oxygen, isoflurane 0.5%, fentanyl, and pancuronium. Heart rate is 92 bpm, blood pressure is 110/60 mmHg, end-tidal carbon dioxide tension is 31 mmHg, and oxygen saturation is 98%. The most appropriate initial treatment is to


Compared with fentanyl, alfentanil is characterized by


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

ADVANCED Neuro

Nitroprusside therapy for hypertension should be discontinued in the presence of

ADVANCED General Cardiac

A 30-year-old man has had burning pain, allodynia, and edema of the hand for six weeks after sustaining a forearm fracture. Appropriate treatment includes each of the following EXCEPT

ADVANCED Regional & Pain

Which of the following statements best describes the decrease in functional residual capacity that accompanies the induction of general anesthesia?

BASIC Respiratory & Critical Care General