You have applied the pulse oximeter to a 73-year-old male patient who complains of weakness and heart palpitations. Your partner reports that the patient's breath sounds are clear and equal, with a respiratory rate of 16 breaths/min and skin that is warm but pale in color. He then states the following vital signs: pulse, 92; blood pressure, 168/70 mmHg; and SpO2, 92% on room air. Given this information, which of these instructions would be most appropriate?
A) "Let's recheck the SpO2 in 2 minutes for any change."
B) "The reading must be wrong since he displays no cyanosis."
C) "The SpO2 is probably normal for him since he is very pale."
D) "Let's initiate oxygen at 2 liters per minute via a nasal cannula."
D) "Let's initiate oxygen at 2 liters per minute via a nasal cannula."
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