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

Choice A rationale
Assisting the guest to the floor and beginning mouth-to-mouth resuscitation is not the appropriate initial response. The guest’s symptoms indicate choking, and the Heimlich maneuver is the recommended first aid response.
Choice B rationale

The Heimlich maneuver is the correct response when someone is choking. The guest’s symptoms of a weak cough, inability to speak, and grasping the throat are classic signs of choking.
Choice C rationale
Observing the guest before taking further action is not appropriate in this situation. Immediate action is required to clear the guest’s airway.
Choice D rationale
Slapping the guest on the back is not the recommended response for choking in adults. It can potentially cause the object to become more deeply lodged in the throat.

Choice A rationale
A client who has community-acquired pneumonia with copious respiratory secretions should be assigned to the private room. This is because pneumonia, especially with copious respiratory secretions, can be transmitted through the air, and therefore requires airborne precautions.
Choice B rationale
A client who has AIDS and is coughing up blood may not necessarily require a private room for airborne precautions. While AIDS is a serious condition, it is not primarily transmitted through the air. Instead, it is transmitted through direct contact with bodily fluids, particularly blood, semen, vaginal fluids, and breast milk.
Choice C rationale
A client who has Guillain-Barré syndrome and is on a ventilator would not necessarily require a private room for airborne precautions. Guillain-Barré syndrome is a neurological disorder, not an infectious disease, and it is not transmitted from person to person.
Choice D rationale

A client who has bronchitis and a tracheostomy may not necessarily require a private room for airborne precautions. While bronchitis can be caused by an infection, it is typically transmitted through direct contact or droplet transmission, not through the air.