What is a good end tidal CO2?

35-45 mmHg
The height of the ETCO2 waveform during CPR has been used as an indirect measure of adequate chest compressions, helping those involved in resuscitation monitor the effectiveness of their compressions in real time. In the awake adult, normal cardiac index lies between 2.5-4 L/min/m2, with an ETCO2 of 35-45 mmHg.

What causes high ETCO2?

In severe cases of respiratory distress, increased effort to breathe does not effectively eliminate CO2. This causes CO2 to accumulate in the lungs and more of it to be excreted with each breath (hypercapnea), which would cause the ETCO2 level to rise.

What color should the CO2 detector be?

The indicator panel is blue when no CO2 is present, green at intermediate concentrations of CO2, and yellow when approximately 5% CO2 is present. A permanent blue or blue-green color indicates the absence of exhaled CO2.

What is the normal range for end tidal CO2?

Normal EtCO2 levels range from 30s and 40s, but this may vary based on the patient’s underlying respiratory and metabolic status. 3. EtCO2 levels that rise from a normal baseline to or above 50 may indicate hypoventilation is occurring.

How accurate is end tidal CO2?

The mean bias±SD for PETCO2 and PaCO2 was 4.53±2.76 mm Hg (nose) and 3.22±2.86 mm Hg (pharynx). The 95% level of agreement for PETCO2 and PaCO2 ranged from -0.90 to 9.95 mm Hg (nose) and from -2.39 to 8.82 mm Hg (pharynx). End-tidal CO2 measurements through the nose and the pharynx had comparable performance.

Is low ETCO2 acidosis?

In hypoperfused patients with metabolic acidosis from shock states, EtCO2 decreases because of a compensatory increase in minute volume resulting from a decrease in serum bicarbonate (HCO3). [11] The more acidotic the patient becomes, the lower the serum HCO3, the greater the respiratory rate, and the lower the EtCO2.

Why wont my colorimetric CO2 turn yellow?

Observe CO2 detector for color change only during the exhalation phase when CO2 is removed from the lungs. No change in color will result if there is no CO2 to be exchanged. Colorimetric devices may be left in place for up to 2 hours during the resuscitation process.

What is colorimetric end tidal CO2 detector?

Colorimetric CO2 detectors visually indicate the presence of exhaled carbon dioxide. They are designed to connect between an endotracheal tube and a resuscitation bag to aid in the verification of proper ETT placement upon intubation.