Medical Quiz

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#1 Most commonly occurs in elderly persons, usually after a fall. The axillary nerve can be injured causing sensory loss along the lateral aspect of the deltoid region. The radial nerve can be injured in a fracture of its mid-shaft/distal third part, causing wrist drop.

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#2 It most often dislocates anteriorly and usually results from a fall on an outstretched hand with forceful abduction, extension, and external rotation of the shoulder. On exam the arm is held in the neutral position, and movement is avoided owing to pain.

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#3 Patients usually present with nonspecific pain localized to the shoulder, but pain is often referred down the proximal lateral arm owing to shared innervation. There may be an inability to abduct or flex the shoulder. Patients may also demonstrate significant weakness in internal or external rotation strength.

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#4 The gold standard for diagnosing bacterial pharyngitis.

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#5 This is the most common cause of major lower GI bleeding, but it usually presents with larger-volume bleeds occurring in discrete, self-limited episodes.

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#6 Not as accurate as colonoscopy for the diagnosis of polyps and cancer (and cannot diagnose angiodysplasia). Used mainly when colonoscopy is unavailable or contraindicated.

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#7 It can predispose to premature atherosclerosis or can induce myocardial ischemia and infarction by causing coronary artery vasoconstriction or by increasing myocardial energy requirements.

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#8 This is more typically associated with pain on palpation or pleuritic pain.

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#9 Can demonstrate segmental wall motion abnormalities in suspected acute MIs (infarction is unlikely in the absence of wall motion abnormalities).

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#10 Findings are often subtle and nonspecific and may be limited to fever, irritability, and poor feeding. The physical exam may reveal a bulging fontanelle; signs may not be obvious in infants (nuchal rigidity and focal neurologic signs are more commonly seen in older children).

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#11 A diagnostic aid in severe or refractory pneumonia cases.

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#12 To look for vesicoureteral reflux in UTI.

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#13 Fever and rash, along with day care attendance, could be consistent with this infection. Lesions are present in various stages of development at any given time (i.e., red macules, vesicles, pustules, crusting), and the rash is intensely pruritic.

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#14 The best marker of acute or recent infection in suspected fifth disease.

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#15 An uncommon acute illness usually caused by one of the coxsackieviruses. It occurs in summer and early fall and presents with acute severe paroxysmal pain of the thorax or abdomen that worsens with cough or breathing. Most patients recover within three days to one week.

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