Question

A patient with chronic obstructive pulmonary disease (COPD) has an order for oxygen at an FIO₂ of 24. What is the reason for this order?

1) To improve oxygenation in the blood
2) To decrease the work of breathing
3) To prevent complications from COPD
4) To reduce inflammation in the lungs

Answer 1

The FIO₂ of 24% oxygen is prescribed to a patient with COPD to primarily improve oxygenation in the blood, as COPD leads to impaired gas exchange due to changes in the alveoli. Option 1.

Step-by-step explanation:

The reason for a patient with chronic obstructive pulmonary disease (COPD) to be prescribed oxygen at an FIO₂ of 24% is primarily to improve oxygenation in the blood option 1. COPD is characterized by a reduced number and elasticity of alveoli resulting from breakdown of connective tissues in the lungs, which impairs the ability to fully exhale air. This can lead to low oxygen levels and a buildup of carbon dioxide in the blood. Supplemental oxygen helps to increase the partial pressure of oxygen in the lungs, thereby improving the oxygenation of the blood. While increasing oxygen levels can also help reduce the work of breathing and prevent complications from COPD, the direct goal of this prescription is to address the hypoxemia (low blood oxygen levels) that is often seen in COPD patients.