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Today in the OR, the anesthesiologist shared with me his "Coffee Cup Rule" for ETCO2 obstruction
Cup Rule" for ETCO2 ... on top of the ETCO2 ... would slide off = clinically ... #Capnography #ETCO2
Basics of Waveform Capnography
Waveform capnography assesses ventilation by monitoring exhaled carbon dioxide
Can use measurement and morphology
pathophysiology CLINICAL ... waveform amplitude ETC02 ... plateau - ETCO2 ... WAVEFORM - Critical ... • DOWNTRENDING ETCO2
Capnography
Measurement of exhaled carbon dioxide can be used to confirm ETT placement, for safer procedural sedation,
PETCO2 - End-tidal ... ventilation (where ETC02 ... Sudden drop in ETCO2 ... diagnosis #pulmonary #ETCO2
Pseudo-PEA and True PEA on POCUS

Is there any meaningful decision making that this differentiates in a
Bystander CPR/ ETCO2 ... True #PEA #POCUS #clinical
Capnography Waveforms
Sudden loss of waveform
 • ET tube disconnected, dislodged, kinked or obstructec
 • Loss of
function Decreasing EtCO2 ... Sudden increase in EtCO2 ... Hyperventilation Decreased EtCO2 ... Interpretation #ETCO2
Capnography and 12 Common Waves - Credit: Charlie Alvarenga

#Diagnosis #CriticalCare #Capnography #Waveforms #Interpretation #ETCO2 #EndTidalCO2 #pulmonary
Interpretation #ETCO2
Know the waves!  Capnography is useful for more than just tube placement confirmation.

#Diagnosis #PCC #Capnography
Interpretation #ETCO2
Ventricular Fibrillation on POCUS Echocardiogram - Parasternal Short Axis

50's male witnessed arrest. Unknown hx. AED no
Still v.fib ETCO2 ... ultrasound #Cardiology #clinical
Ventricular Fibrillation on POCUS Echocardiogram - Subcostal 4 Chamber

50's male witnessed arrest. Unknown hx. AED no
Still v.fib ETCO2 ... ultrasound #Cardiology #clinical
CAPNOGRAPHY 
Provides a measure of ventilation – or concentration of CO2 exhaled air (aka end tidal
end tidal CO2 or etCO2 ... #EtCO2 #Capnography