There is a narrow therapeutic window for one of your patients with signs of an acute stroke. Which of the following is likely to be done in this narrow window of time?

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A stat CT would help rule out hemorrhage (an obvious contraindication for thrombolytic treatment). The MRI would document acute stroke if CT is not definitive. Carotid Doppler ultrasound is too time-consuming for an acute situation and does not show intracranial circulation. Cerebral radionuclide PET scan has no indication in an acute situation. Echocardiography might be appropriate much later when the patient is stabilized and treated, but not during the short therapeutic window for treating stroke.

There Is a Narrow Therapeutic Window for One of Your