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12115 Medicine

A 7-year-old child develops malaise, cough, coryza, and conjunctivitis with a high fever. Prior to this illness he was completely healthy. Further questioning reveals that he has not received any childhood vaccinations because of his parents’ religious beliefs. Examination of his mouth reveals blue white spots on a red base beside his second molars. The next day he develops an erythematous, nonpruritic, maculopapular rash at his hairline and behind his ears, which spreads over his body. Which of the following is the most likely diagnosis?

Ahand-foot-and-mouth disease (coxsackievirus)
Bmeasles (rubeola)
Crubella (German measles)
Dmumps
Medicine
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12119 Medicine

A 27-year-old woman presents to the emergency room with a panic attack. She appears healthy except for tachycardia and a respiratory rate of 30. Electrolytes include calcium 10.0 mg/dL, albumin 4.0 g/dL, phosphorus 0.8 mg/dL, and magnesium 1.5 mEq/L. Arterial blood gases include pH of 7.56, PCO2 21 mm Hg, and PO2 99 mm Hg. Which of the following is the most likely cause of the hypophosphatemia?

AHypomagnesemia
BHyperparathyroidism
CRespiratory alkalosis with intracellular shift
DPoor dietary intake
Medicine
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