Difficulty: Medium
Average Score: 88%
Simulated
A client who survived a house fire is experiencing respiratory distress, and an inhalation injury is suspected. What should the nurse monitor to determine the presence of carbon monoxide poisoning?
Correct answer
D
Rationale
Serum carboxyhemoglobin levels are the most direct measure of carbon monoxide poisoning, provide the level of poisoning, and thus determine the appropriate treatment measures. The carbon monoxide molecule has a 200 times greater affinity for binding with hemoglobin than an oxygen molecule, causing decreased availability of oxygen to the cells. Clients are treated with 100% oxygen under pressure (hyperbaric oxygen therapy). Options 1, 2, and 3 would not identify carbon monoxide poisoning.