“It is frequently necessary to measure the efficiency of gas exchange in the lung, which is often essential for many patients with pulmonary disease. Oxygen Deficit is the most informative measure of pulmonary gas exchange.”
Dr. John B West
“An Oxygen Deficit of 40 mmHg or above predicted a need for supplemental oxygen at some point during that hospital course with, essentially, 99% accuracy. The area under the curve of the receiver operating characteristic curve was 0.99.”
ER Physician - Medscape interview
Pulmonary embolism (PE) is a type of venous thromboembolism (VTE) in which a clot or other obstruction breaks off and moves to the pulmonary vasculature and results in reduced pulmonary gas exchange.
There is no question that stand-alone pulse oximetry has become a standard in modern healthcare. It is as ubiquitous as the stethoscope, and as heavily relied upon as the electrocardiogram. That makes it all the more concerning that suddenly, in the midst of the largest respiratory crisis the world has ever faced, healthcare providers are wondering if this long-held lynchpin of healthcare monitoring is leading them astray.
Patients in respiratory distress require immediate medical attention. The ability to quickly identify hypoxemia and its cause is crucial for positive patient outcomes. However, there is a gap in the current cardiorespiratory assessment toolkit that leaves clinicians unable to quickly identify the cause and severity of hypoxemia.
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