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159247 Surgery

A 60-year-old man is admitted to the coronary care unit with a large anterior wall myocardial infarction. On his second hospital day he begins to complain of the sudden onset of numbness in his right foot and an inability to move his right foot. On physical examination, the right femoral, popliteal, and pedal pulses are no longer palpable. Vascular consultation is obtained. Diagnosis of acute arterial embolus is made. Which of the following statements concerning this condition is true?

AAppropriate management would be embolectomy of the right femoral artery under general anesthesia
BNoninvasive hemodynamic testing is required
CProphylactic exploration of the contralateral femoral artery should be done despite the presence of a normal pulse
DThe source of the embolus is most likely the left ventricle
Surgery
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159252 Pathology

A 60-year-old woman noticed an enlarging “bump” beneath her tongue for the past year. She does not smoke or use alcohol. On physical examination, there is a 2.5-cm, movable, submucosal mass arising in the minor salivary glands on the buccal mucosa beneath the tongue on the right. Histologic examination of the excised mass shows that it is malignant and locally invasive. The tumor recurs within 1 year. Which of the following is the most likely diagnosis?

ANon-Hodgkin lymphoma
BMucoepidermoid carcinoma
CPrimitive neuroectodermal tumor
DPleomorphic adenoma
Pathology
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159254 Anaesthesia

Use of dexemditomidine

AProlong action of LA in hypeensive patients
BSedative agent for intubated patients
CIncreases bioavailability of regional anaesthetic drug
DHelps in reducing bispictral index of general anaesthetic drug with low potency
Anaesthesia
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