Ventilation. Perfusion. And the Space In Between
There’s a number we throw around in medicine. 0.8. We say it like it’s fixed. Predictable. Reliable. But it isn’t. That number… is a compromise. And unless you understand why…
When Oxygen Lies: The Comfortable Illusion of High-Flow Nasal Cannula
There is a moment most of us recognise, although we rarely say it out loud. You place a patient on high-flow nasal cannula.The respiratory rate slows.The anxiety softens.The oxygen saturation…