Peer-influenced content. Sources you trust. No registration required. This is HCN.
COPD News Today
Uncover vital insights about supplemental oxygen use, demystify misconceptions, and learn best practices for managing respiratory diseases. Good day, physicians. Let’s talk about the controversial issue of supplemental oxygen use, frequently discussed by patients, clinicians, advocacy groups, and even politicians. In this summary, we’ll untangle misconceptions and illuminate best practices. To start with, the body’s oxygen utilization depends on three things: lung function, heart efficiency, and muscle oxygen use. These factors can improve with exercise, but worsen with inactivity. Remember, exercise matters. Why does oxygen matter? For patients with chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), or pulmonary hypertension (PH), impaired oxygenation can lead to hypoxemia and hypoxia. Hence, supplemental oxygen becomes a necessity. How do we assess oxygen levels? Two tests can be employed: arterial blood gas (ABG) or pulse oximetry. Normal partial pressure of oxygen, as per ABG, is around 75-100 mmHg, and a drop below 60 necessitates supplemental oxygen. Oxygen saturation, measurable via either test, should ideally be 95% or above, and values dropping to 90 or below indicate the need for supplemental oxygen. Now, let’s dispel some myths. Shortness of breath doesn’t always equate to hypoxia. A patient can experience breathlessness even with normal oxygen […]
Family Medicine/General Practice May 24th 2023