CAPNOGRAPHY V/S PULSE OXIMETRYCAPNOGRAPHY - Provides a measure of ventilation – or concentration of CO2 exhaled air
- (aka end tidal CO2 or etCO2).
- Not effected 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
- 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.
