Beginner's Guide to End-Tital Capnography 4 Phases of the Capnoqram I - Inspiration and expiration Of dead space II - Mixing of dead space with ventilated alveoli Ill - alveolar plateau and maximal emptying IV - onset of inspiration Uses • Can show obstructive disease with "shark fin" waveform (pink) because delayed time to alveolar emptying • Can show esophageal intubation (green) because there's no ventilation in the stomach • Can show oversedation in procedural sedation with decreasing waveform • Can show adequacy of CPR (high mortality with <10mmHg) • Can show ROSC with sharp increase in waveform during CPR • Can show fluid responsiveness with 5% rise with Passive Leg Raise test #Diagnosis #PCC #EndTidalCO2 #ETCO2 #Capnography #Capnogram #Patterns #Waveform #Interpretation #pulmonary
