A client with severe hypoxemia requires oxygen therapy. What is the appropriate delivery method for this client?

Answer: b. Monitoring the client's carbon dioxide levels

Explanation: Clients with COPD have a chronic retention of carbon dioxide, so monitoring carbon dioxide levels is essential to prevent the development of respiratory acidosis while providing long-term oxygen therapy.

Incorrect choices:

a. Assessing for signs of oxygen toxicity is important but is not specific to clients with COPD.

c. Proper humidification of oxygen is beneficial but does not take precedence over monitoring carbon dioxide levels in clients with COPD.

d.Ensuring an adequate supply of oxygen is a general consideration for all clients receiving oxygen therapy and is not specific to clients with COPD.

Answer: d. Non-rebreather mask Explanation

A non-rebreather mask is the most suitable delivery method for a client with severe hypoxemia, as it provides the highest concentration of oxygen (up to 95%) by utilizing a reservoir bag and one-way valves to prevent the rebreathing of exhaled air.

Incorrect choices:

a. Nasal cannula delivers lower concentrations of oxygen and is more appropriate for clients with mild hypoxemia.

b. Simple face mask delivers moderate concentrations of oxygen and is suitable for clients with stable oxygen needs.

c. Venturi mask delivers precise concentrations of oxygen and is commonly used in clients with chronic respiratory conditions.