You are treating a 67-year-old male with chest pain and a history of prior heart attacks as well as diabetes and hypertension. The patient has taken three nitroglycerin tablets which have decreased the pain from 7 to 4/10; however, the pain persists. Initially, his SpO2 was 91 on room air. Oxygen was applied by nasal cannula and now, on 3 lpm O2, his SpO2 is 97. How would you address the oxygen, given that he still has chest pain?
A) Increase the oxygen to 4 lpm
B) Decrease the oxygen to 2 lpm
C) Leave the oxygen unchanged
D) Discontinue oxygen therapy
Question 2
The maximum flow rate to be used with a nasal cannula is ________ liters per minute.
A) 10
B) 6
C) 8
D) 4
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