Normal ETO2 waveform
35-45mmHg
CURVED SHARKFIN APPEARANCE
ASTHMA
COPD
Slow rate with increased ETCO2
Hypoventilation
Partial airway obstruction
Respiratory depression
Rapid rate with decreased ETCO2
Hyperventilation
Excessive BVM use
Pulmonary embolism
Decreased ETCO2 with variable waveforms
APNOEA
inadequate breathing
Sedation
ETCO2 in an intubated patient
Sudden loss of waveform near zero
Tube disconnected/dislodged/obstructed
Decreasing ETCO2 with loss of plateau
ET tube cuff issue
ET tube in hypopharynx
Partial obstruction
What is the minimum mmHg to be maintained during CPR
10