Confusion or trouble concentrating
A bluish tint to the lips, fingertips, or skin (known as cyanosis)
Some people may not notice clear symptoms until oxygen levels become dangerously low, which is why awareness and monitoring are so important.
How Hypoxemia Is Diagnosed
Healthcare providers use several methods to evaluate oxygen levels and identify underlying causes:
Pulse Oximetry: A quick, non-invasive test that estimates oxygen saturation using a small device placed on the finger.
Arterial Blood Gas (ABG) Test: Provides precise measurements of oxygen and carbon dioxide levels in the blood.
Imaging Tests: Chest X-rays or CT scans can help detect lung or heart problems.
Additional Tests: Pulmonary function tests and echocardiograms may be used for further evaluation.
