A college health nurse interprets the peak expiratory flow rate for student who has asthma and finds that the student is in the yellow zone of his asthma action plan. The nurse should base her actions on which of the following information? (Select all that apply.)

A. Wear a mask when caring for the client: This is an important action to prevent the spread of influenza, which is transmitted via respiratory droplets. Wearing a mask helps protect both the healthcare provider and other patients from potential exposure to the virus, especially in the early stages of the disease when the client is most contagious.
B. Place the client in a private room: This action is recommended to minimize the risk of transmitting the influenza virus to other patients. Isolating the client in a private room can help control the spread of infection, making it a necessary measure in this situation.
C. Encourage the client to increase fluid intake: Adequate hydration is essential for clients with influenza to help alleviate fever and maintain overall health. Increasing fluid intake supports the immune system and helps prevent complications such as dehydration, so encouraging the client to drink more fluids is appropriate.
D. Place the client on contact precautions: While contact precautions are essential for preventing the spread of infections transmitted by direct contact, they are not specifically necessary for influenza, which is primarily airborne and droplet transmitted. Standard precautions, including droplet precautions, are sufficient for managing a client with influenza.
E. Prepare to administer an antibiotic to the client: This action is not appropriate because influenza is a viral infection, and antibiotics are ineffective against viruses. Treatment for influenza typically involves antiviral medications if indicated, supportive care, and symptom management rather than antibiotics. Therefore, this option should not be included in the actions the nurse takes.

A. To facilitate weaning off the mechanical ventilator. While PEEP is an important component of mechanical ventilation, its primary function is not to facilitate weaning. Instead, it improves oxygenation by preventing alveolar collapse. Weaning involves gradually reducing ventilatory support, but PEEP is typically adjusted based on oxygenation needs rather than as a direct step in weaning.
B. To decrease trapped oxygen in the alveoli. PEEP does not decrease trapped oxygen; instead, it maintains alveolar patency and prevents atelectasis. In conditions like ARDS, alveoli tend to collapse due to fluid accumulation and inflammation, and PEEP helps counteract this collapse to improve gas exchange. Reducing "trapped" oxygen is not a function of PEEP.
C. To promote independent breathing efforts. PEEP itself does not promote spontaneous breathing; instead, it provides positive pressure at the end of exhalation to improve oxygenation. In fact, high levels of PEEP can suppress spontaneous breathing by increasing intrathoracic pressure, requiring careful adjustment to balance oxygenation and ventilatory effort.
D. To keep the airways and small lung spaces open. PEEP prevents alveolar collapse by maintaining positive pressure in the lungs at the end of expiration. This improves oxygenation and gas exchange, which is critical in ARDS, where alveoli are prone to collapse due to inflammation and fluid accumulation. Keeping alveoli open reduces shunting and improves oxygen delivery to tissues.