Satyendra Dhar, MD @DharSaty · 2 weeks ago
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CAPNOGRAPHY Provides a measure of ventilation – or concentration of CO2 exhaled air (aka end tidal
x.com 
CAPNOGRAPHY 
Provides a measure of ventilation – or concentration of CO2 exhaled air (aka end tidal CO2 or etCO2).
Not affected by supplemental oxygen.
Reflects breath-to-breath ventilation.
Appear not normal if the patient has stopped breathing.
Apnea or hypoventilation is detected immediately by capnography.

PULSE OXIMETRY 
Measures oxygenation or arterial blood oxygen saturation & pulse rate.
Detects oxygen deficiency (hypoxia).
May appear normal even if the patient has stopped breathing.
Takes time to detect Apnea or hypoventilation.

#EtCO2 #Capnography #curarecleft #hypoventilation #hyperventilation #apnea
Satyendra Dhar, MD @DharSaty · 2 weeks ago
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