Capnography: Not Just for Cardiac Arrest and Sedation Anymore

From EP Monthly:

Where does that leave us for capnography? This monitoring device has many potential uses, but several are still under study and require further refinement. EtCO2 is reliable in ETT placement, ETT confirmation, evaluation for ROSC, and monitoring for hypoventilation in procedural sedation. Literature suggests it correlates with lactate and acidosis: as lactate increases and acidosis worsens, EtCO2 decreases. Capnography is promising for use in conditions with metabolic acidosis (DKA, sepsis), PE, obstructive lung disease, fluid responsiveness, and trauma, but it should only assist your clinical judgment at the bedside in its current form.

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