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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