A patient is undergoing oxygen therapy through a nasal cannula.If the patient inquires about the reason for having oxygen tubing in their nose, what explanation about the cannula should the nurse provide?

Choice A rationale
While antibiotics are used to treat bacterial infections, crackles in the lungs can be a sign of various conditions, not just bacterial infections. Therefore, administering antibiotics is not the appropriate action based solely on the finding of crackles.
Choice B rationale

Limiting fluid intake can be beneficial for clients with certain conditions such as heart failure, but it is not the appropriate action based solely on the finding of crackles.
Choice C rationale
Initiating bedrest in semi-Fowler’s position can help improve lung expansion and ease breathing in clients with certain respiratory conditions. However, it is not the appropriate action based solely on the finding of crackles.
Choice D rationale
Crackles can sometimes be cleared by deep breathing and coughing. Repeating the auscultation after asking the client to breathe deeply and cough can help the nurse determine if the crackles are transient (cleared by coughing) or persistent.

Choice A rationale
It is a good practice to change the batteries in smoke detectors annually to ensure they are working properly. This statement does not indicate a need for further instruction.
Choice B rationale
Using a walker when going upstairs can be dangerous due to the risk of falls. It is recommended that individuals use handrails or assistance when navigating stairs, not a walker. This statement indicates that the client needs further instruction.
Choice C rationale
Leaving a night light on can help prevent falls by providing visibility during the night. This statement does not indicate a need for further instruction.
Choice D rationale

Installing grab bars in the bathroom, especially near the toilet and in the shower, can provide support and prevent falls. This statement does not indicate a need for further instruction.