This chest tightness can change from day to day, and/or from moment to moment. All of the above combinations and variations are common. This type of chest tightness is commonly misconstrued as heart problems or the signs of a heart attack.
Cardiac arrest, also known as cardiopulmonary arrest or circulatory arrest, is a sudden stop in effective blood circulation due to the failure of the heart to contract effectively or at all. Medical personnel may refer to an unexpected cardiac arrest as a sudden cardiac arrest (SCA).
A do-not-resuscitate (DNR) order placed in a personâs medical record by a doctor informs the medical staff that cardiopulmonary resuscitation (CPRâsee see Cardiac Arrest: First-Aid Treatment) should not be done. This order has been useful in preventing unnecessary and unwanted invasive treatment at the end of life.ther treatments (for example, antibiotic therapy, transfusions, dialysis, or use of a ventilator) that may prolong life can still be provided. Depending on the person's condition, these other treatments are usually more likely to be successful than CPR.