Frequently used as an abbreviation for secondary to. You might also see it written as 2 or 2/2. Feb 7, '11. We were told to use s/t instead of r/t if the defining characteristic you cite in your NDX statement is an MDX rather than a sign or symptom.
Examples of heart-related causes of chest pain include: Heart attack. A heart attack is a result of a blood clot that's blocking blood flow to your heart muscle. Angina. Thick plaques can gradually build up on the inner walls of the arteries that carry blood to your heart.
Chest pain is a painful or unpleasant sensation in your chest, which may or may not be associated with heart tissue damage. Chest pain can happen in adults for a variety of reasons. Some causes of chest pain may include: 1  Lung-you may have pneumonia, or another type of infection in your lung that may cause chest pain.