A patient is found unconscious in a closed garage with a running engine. What pulse oximetry reading would you most likely expect?
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A
SpO2 of 60–65% (critically low)
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B
SpO2 of 98–100% (falsely normal)
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C
SpO2 of 80–85% (moderately low)
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D
SpO2 of 70–75% (severely low)