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

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.

Choice A rationale

Mycoplasmal pneumonia, also known as walking pneumonia, is typically not an airborne disease. Standard precautions, including the use of a surgical mask, are usually sufficient when caring for these patients.
Choice B rationale
Scarlet fever is caused by group A Streptococcus bacteria, which are spread through respiratory droplets. Standard precautions, including the use of a surgical mask, are usually sufficient when caring for these patients.
Choice C rationale
Tuberculosis is an airborne disease. Healthcare providers should wear an N95 respirator when caring for a client with tuberculosis to protect themselves from inhaling the bacteria.
Therefore, Choice C is the correct answer.
Choice D rationale
Scabies is caused by a mite and is spread through direct skin-to-skin contact. It is not an airborne disease, so an N95 respirator is not necessary when caring for a client with scabies.