![]() This upward inflection we’re seeing here first is the patient exhaling. Remember, we’re talking about the patient’s exhaled CO2. It can also help determine the effectiveness of the chest compressions I’m doing if the heart fails.īefore we get into these numbers, let’s take a quick look at a capnography waveform and define the parts in the waveform. However, in ACLS and in a cardiac arrest, I’m using end-tidal not necessarily for the pulmonary or respiratory status but to look at the function of the pump, the function of the heart. I can look at those numbers and adjust my ventilator accordingly to keep them within a normal range. Remember, a normal end-tidal is between 35 and 45. I’m using it for respiratory and pulmonary status. Usually in the field, I’m using end-tidal to tweak my ventilator. Remember, the cells are going to use this oxygen, create the CO2, but I still have to have adequate cardiac output, a working pump, to pump that CO2 all the way back to the lungs so it can be exhaled and measured. This is exactly what we’re using end-tidal CO2 for in ACLS. ![]() By evaluating the exhaust, they can see if there’s a problem with the motor. If you get a notice from your emissions center like I just got, I’m going to take my van in and have the emissions center check my exhaust. The motor uses the gas and then kicks out exhaust. I kind of think of it like the exhaust in a car. What is end-tidal capnography? It’s a quantitative measurement of a patient’s exhaled CO2, which is the byproduct of cellular metabolism. ![]() In today’s video presentation, we’re going to talk about end-tidal capnography-how we use it in ACLS and especially during a cardiac arrest. I’m Mark from ACLS Certification Institute.
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