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
Massaging the site after injection is not recommended. It can cause the insulin to be absorbed more quickly than intended, which could lead to hypoglycemia.
Choice B rationale
Using cold insulin for injection to minimize site pain is not accurate. Insulin should be at room temperature when injected. Cold insulin can make the injection more painful.
Choice C rationale
Rotating the injection site is important to prevent lipodystrophy, a condition that causes abnormal fat deposits at the injection site. It also helps to keep insulin levels consistent.
Choice D rationale
Insulin is not absorbed most rapidly when injected in the thigh. The abdomen is actually the site where insulin is absorbed most quickly.

Choice A rationale
Using a humidifier beside the bed at night may not necessarily decrease the number of apneic episodes in a client with obstructive sleep apnea. While a humidifier can help moisten the airways and may provide some relief from symptoms such as dry mouth or throat, it does not address the underlying issue of airway obstruction.
Choice B rationale
Losing weight can indeed help decrease the number of apneic episodes in a client with obstructive sleep apnea. Obesity is a major risk factor for sleep apnea, as excess fat tissue can thicken the wall of the windpipe, making it narrower and making it harder to keep open.
Therefore, losing weight can help reduce this fat and widen the airway, leading to fewer apneic episodes.
Choice C rationale
Taking a sleeping pill at night may actually worsen obstructive sleep apnea. While it might help the client fall asleep, it can also relax the muscles of the throat, which can make the airway more likely to collapse during sleep, leading to more apneic episodes.

Choice D rationale
Drinking a glass of red wine before bedtime is not recommended for a client with obstructive sleep apnea. Alcohol can relax the muscles in the throat and can disrupt the normal sleep cycle, both of which can lead to more apneic episodes.