You are admitting a 54-year-old patient with chronic obstructive pulmonary disease (COPD). The physician prescribes O2 at 24 FIO2. What is the most appropriate oxygen delivery method for this patient?
1) Nonrebreather mask
2) Nasal cannula
3) Partial rebreather mask
4) Venturi mask
Question 2
You are to connect a patient to a cardiac monitor. Which of the following actions should you take to ensure an accurate electrocardiogram tracing?
1) Select electrode placement sites over bony prominences.
2) Apply the electrodes immediately after cleansing the skin, before the alcohol evaporates.
3) Before applying the electrodes, rub the placement sites with gauze until the skin reddens.
4) Ensure that the gel on the back of the electrodes is dry.
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