Neonatal Nurse Practitioner Practice Exam

What is the primary aim when adjusting FiO2 in oxygen therapy?

1. Maintain CO2 levels

2. Restore normal pH

3. Prevent hypoxemia

4. Reduce airway resistance

The correct answer is: Prevent hypoxemia

The primary aim of adjusting FiO2 (Fraction of Inspired Oxygen) in oxygen therapy is to prevent hypoxemia, which refers to low levels of oxygen in the blood. When a patient is receiving oxygen therapy, the goal is to ensure that they receive an adequate amount of oxygen to meet their metabolic needs and to facilitate proper cellular function. Hypoxemia can lead to tissue hypoxia, organ dysfunction, and potential long-term consequences if not addressed promptly. In clinical practice, healthcare providers continuously monitor a patient’s oxygen saturation levels and make adjustments to the FiO2 to achieve optimal oxygenation. This is typically guided by the patient’s specific clinical situation and their response to the therapy. By maintaining an appropriate level of FiO2, the risk of hypoxemia is minimized, promoting better overall health outcomes for the patient. Other factors such as CO2 levels, pH balance, and airway resistance do play important roles in respiratory management and can influence treatment decisions. However, the immediate focus of adjusting FiO2 specifically centers on ensuring the patient receives sufficient oxygen to prevent hypoxemia. This fundamental goal is crucial for the effective management of many neonatal and pediatric conditions where oxygen delivery is compromised.