This will normalize once. treatment pressure is achieved. Depending upon the treatment pressure used for. your therapy, you might be instructed to peri-. odically breathe air from a facemask inside the. chamber. This provides an additional protection. against oxygen toxicity.
When to See a Doctor. If you have frequent bouts of chest pain, heart palpitations or irregular heartbeats, shortness of breath or fainting, you should see your doctor right away as sudden cardiac arrest requires emergency treatment. If these symptoms are ongoing, call 9-1-1 immediately.ââ.
Although a heart attack can lead to a cardiac arrest, they are not the same thing. A heart attack is a sudden interruption to the blood supply to part of the heart muscle. It is likely to cause chest pain and permanent damage to the heart.