The nurse is aware that the most relevant knowledge about oxygen administration to a male client with COPD is:
A. Oxygen at 1-2L/min is given to maintain the hypoxic stimulus for breathing.
B. Hypoxia stimulates the central chemoreceptors in the medulla that makes the client breathe.
C. Oxygen is administered best using a non-rebreathing mask.
D. Blood gases are monitored using a pulse oximeter.
Correct Answer: A. Oxygen at 1-2L/min is given to maintain the hypoxic stimulus for breathing.
COPD causes a chronic CO2 retention that renders the medulla insensitive to the CO2 stimulation for breathing. The hypoxic state of the client then becomes the stimulus for breathing. Giving the client oxygen in low concentrations will maintain the client’s hypoxic drive.
Option B: The hypoxic state of the client is the stimulus for breathing.
Option C: The client may use the Venturi mask as a high flow device that delivers a fixed oxygen concentration and is best for clients with COPD.
Option D: Blood gas analysis or arterial blood gas (ABG) test measures the amount of oxygen and carbon dioxide in the blood. It may also be used to determine the pH of the blood, or how acidic it is.