A nurse is reinforcing teaching with a new parent who is concerned about sudden infant death syndrome (SIDS). Which of the following statements by the client indicates an understanding of the teaching?

The correct answer is choice B: A client who has measles.

Choice A rationale:

Airborne precautions are indicated for diseases that spread via small particles suspended in the air, such as droplets or dust particles that remain in the air for prolonged periods. Pneumonia is primarily spread through larger respiratory droplets and is not considered an airborne disease. Therefore, airborne precautions are not necessary for a client with pneumonia.

Choice B rationale:

Measles is a highly contagious airborne disease caused by the measles virus. It is transmitted through respiratory droplets and can remain in the air for an extended period. Initiating airborne precautions, such as wearing an N95 respirator mask and placing the client in a negative pressure isolation room, is crucial to prevent the spread of measles to healthcare workers and other patients.

Choice C rationale:

Pertussis (whooping cough) is primarily spread through respiratory droplets, similar to pneumonia. While it is a serious bacterial infection, it is not classified as an airborne disease. Thus, airborne precautions are not required for a client with pertussis.

Choice D rationale:

Methicillin-resistant Staphylococcus aureus (MRSA) is mainly spread through direct contact with contaminated surfaces or individuals. Airborne precautions are not necessary for MRSA, as it is not transmitted through the air. Standard precautions, including wearing gloves and gowns, are typically sufficient when caring for a client with MRSA.

The correct answer is **d. Attach a humidifier to the base of the flow meter**.

Choice A rationale:

Keeping the side holes of the mask closed would restrict airflow and prevent the client from receiving the prescribed oxygen concentration. This action would be unsafe and should not be taken.

Choice B rationale:

Ensuring the reservoir bag is inflated on expiration is not necessary for a simple face mask. The reservoir bag is typically used with other oxygen delivery devices, such as a non-rebreather mask, to provide a higher concentration of oxygen. This action is not appropriate for the given scenario.

Choice C rationale:

Applying petroleum jelly to the client's nostrils is not a recommended action. Petroleum jelly can potentially cause irritation and dryness, which could lead to discomfort for the client. This action is not necessary for the safe administration of oxygen.

Choice D rationale:

Attaching a humidifier to the base of the flow meter is the appropriate action to ensure client safety. Humidifying the oxygen can help prevent drying of the client's airway and make the oxygen more comfortable to breathe. This is a recommended step when administering high-flow oxygen via a simple face mask.