A client is receiving oxygen at 2 L/min via a nasal cannula. What oxygen concentration is the client receiving?

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.

Choice A rationale
The deltoid muscle is not typically used for injections in newborns. It is not as developed as the vastus lateralis and does not have as much muscle mass.

Choice B rationale
The ventrogluteal muscle is generally not used for injections in newborns. It is not as accessible or as well developed as the vastus lateralis.
Choice C rationale
The dorsogluteal muscle is not recommended for injections in newborns due to the risk of damaging the sciatic nerve.
Choice D rationale
The vastus lateralis muscle is the preferred site for intramuscular injections in newborns. It is the most developed muscle in this age group and is free of major nerves and blood vessels.