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Old 07-21-2016
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Default Repeated USMLE Questions Step 1 (7)
A 62-year-old man complains of severe headache, dizziness, nausea and deterioration of vision. Workup shows a decrease in oxygen carrying capacity with no change in PO2 of arterial blood.
Which of the following is most likely responsible for this patient's symptoms?
A- Ozone
B- Carbon monoxide (CO)
C- Sulfur dioxide
D- Nitrogen
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Old 07-22-2016
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Carbon Monoxide
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The above post was thanked by:
sohag100 (07-22-2016)



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