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Old 10-19-2012
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Arrow Billy Step 1 Questions # 36

When Pharaoh did not heed Moses and let the Hebrews go, a series of plagues fell on Egypt. In the fifth plague, large
domesticated mammals, including cattle, horses, and sheep, died. This was followed by a plague in which the Egyptians
developed cutaneous boils that probably appeared as 1- to 5-cm areas of erythema with central necrosis forming an
eschar. Some Egyptians also may have developed a mild, nonproductive cough associated with fatigue, myalgia, and lowgrade
fever over 72 hours, followed by a rapid onset of severe dyspnea with diaphoresis and cyanosis. Vital signs might
have included temperature of 39.5°C, pulse of 105/min, respirations of 25/min, and blood pressure of 85/45 mm Hg. On
auscultation of the chest, crackles would be heard at the lung bases. A chest radiograph would show a widened
mediastinum and small pleural effusions. “Legacy” laboratory findings would include a CBC with WBC count of
13,130/mm3, hemoglobin of 13.7 g/dL, hematocrit of 41.2%, MCV of 91 μm3, and platelet count of 244,000/mm3. Despite
antibiotic therapy with ciprofloxacin and doxycycline, many of those affected would die. Which of the following organisms is
most likely to produce these findings?


□ (A) Bacillus anthracis
□ (B) Herpes simplex virus
□ (C) Mycobacterium leprae
□ (D) Staphylococcus aureus
□ (E) Variola major
□ (F) Yersinia pestis
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Old 10-19-2012
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a) bacillus anthracis-------anthrax..

widened mediastinum..,eschar are buzz words

thanks
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Old 10-19-2012
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A...nice biblical correlation
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Old 10-19-2012
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A) Bacillus anthracis
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Old 10-19-2012
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Default my answer :)

(A) Bacillus anthracis
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Old 10-19-2012
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ALL above are correct
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