Field Internship Student Data Acquisition Project. (FISDAP) Airway Practice Exam

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What might happen if high flow oxygen is provided to a patient with COPD?

It enhances their breathing drive
It could negatively affect their drive to breathe
It improves lung capacity
It prevents hypoxia

The correct answer is: It could negatively affect their drive to breathe

Patients with Chronic Obstructive Pulmonary Disease (COPD) have adapted to high levels of carbon dioxide in their bloodstream. Their bodies often rely on low oxygen levels as a trigger to breathe, a process known as hypoxic drive. When high-flow oxygen is administered, it can potentially increase the oxygen levels in their blood to a point where the body perceives that sufficient oxygen is present. This can dampen their respiratory drive, leading to inadequate ventilation and an increased risk of respiratory acidosis or even respiratory failure. Understanding this physiological response is critical for managing patients with COPD effectively. Monitoring oxygen saturation and carefully titrating oxygen therapy to maintain adequate levels while avoiding high flow rates can be essential in preventing a reduction in their drive to breathe.