As part of a preoperative evaluation, a patient had a thallium scan showing a "cold spot" over the left ventricle that occurs with moderate exercise and disappears at rest. This most likely indicates
Immediately after a retrobulbar block for cataract surgery, the eye grossly protrudes and the patient has the sensation of pressure in the eye. The most appropriate initial intervention is
Which of the following statements concerning the pharmacokinetics of nondepolarizing muscle relaxants is true?
(A) Drugs with a longer duration of action depend on the liver for excretion
(B) Drugs with a shorter duration of action depend primarily on redistribution for recovery
(C) Onset of action is independent of dose
(D) Recovery rate parallels the decrease in plasma relaxant concentration
(E) The shorter the duration of action, the faster the onset
D
A patient with a fasting blood glucose concentration of 100 mg/dl undergoes a four-hour operation under general anesthesia without intraoperative administration of glucose. On emergence the most likely finding will be
An obese patient and a lean patient receive halothane for the same duration and at the same inspired tension. Postoperatively, the obese patient would demonstrate
A 27-year-old man with a one-month history of quadriplegia at a C6 level is given general anesthesia for cystoscopy. During the cystoscopy, blood pressure suddenly increases to 220/120 mmHg. Further evaluation is most likely to show
A conscious patient has an acute subdural hematoma that will require surgical evacuation. Which of the following interventions to be carried out in the emergency department is most likely to decrease intracranial pressure?
(A) Having the patient hyperventilate
(B) Intravenous administration of an opioid
(C) Intravenous administration of a corticosteroid