How long should you wait before drawing an ABG on a chronic obstructive pulmonary disease (COPD) patient whose FiO₂ has just been changed? A) 5 to 10 min B) 10 to 15 min C) 15 to 20 min D) 20 to 30 min

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In COPD patients, it is recommended to wait 20 to 30 minutes after changing the FiO2 to allow the patient's blood gases to stabilize before drawing an arterial blood gas (ABG) sample.

How Long Should You Wait Before Drawing an ABG on a Chronic