Teams should aim for EtCO2 at least >10 mm Hg and ideally >20 mm Hg. Where do these numbers come from? These values are approximately 1/4 the normal EtCO2 (35-45 mm Hg), and ideal CPR will provide at least 1/4 of cardiac output. This is an example of capnography during CPR.

Why is ETCO2 low during CPR?

Low ETCO2 (below 10 mm HG) may be caused by either poor compression technique, or from low perfusion and metabolism after a long downtime or shock despite good compressions.

What does PETCO2 of 8 mm Hg mean?

Waveform capnography PETCO2 levels ≥ 10 mmHg indicate adequate chest compressions. If intra-arterial. relaxation pressure (as measured by using an intra-arterial catheter) during CPR is < 20 mmHg attempt to. improve chest compressions.

What is PETCO2?

Quantitative waveform capnography is the continuous, noninvasive measurement and graphical display of end-tidal carbon dioxide/ETCO2 (also called PetCO2). Capnography uses a sample chamber/sensor placed for optimum evaluation of expired CO2.

What should PETCO2 be?

PaCO2 – PetCO2 gradient and target shift

PaCO2 (BGA)60 mmHg
PaCO2 target (physician)40–50 mmHg
PetCO2 patient (measured)38 mmHg

What is main determinant of PETCO2 during CPR?

The main determinant of PETCO2 during CPR is blood delivery to the lungs. Persistently low PETCO2 values less than 10 mm Hg during CPR in intubated patients is a good indicator that achieving ROSC will be unlikely.

What is the main determinant of PETCO2 during CPR?

What does a low PETCO2 mean?

As a prognostic indicator of resuscitation outcomes, PetCO2 that is consistently lower than 10 mm Hg despite adequate ventilation and effective chest compressions can be considered a criterion for termination of resuscitation efforts [4, 5].

How do you measure PETCO2?

The measured PetCO2 value is used to track partial CO2 pressure in the arteries (PaCO2). ​In general, PetCO2 value represents a reliable index of CO2 partial pressure in the arterial blood (PaCO2) (measured using blood gas analysis (BGA))….PaCO2 – PetCO2 gradient and target shift.

PaCO2 (BGA)60 mmHg
PetCO2 patient (measured)38 mmHg

How do you measure PetCO2?