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.
What causes chest pain? Chest pain can be caused by a range of conditions, from not serious to life-threatening. It may be caused by a heart attack or a blood clot in your lungs. Sometimes chest pain or pressure is caused by poor blood flow to your heart (angina). Infection, inflammation, or a fracture in the bones or cartilage in your chest can cause pain or discomfort. Chest pain can also be a symptom of a digestive problem, such as acid reflux or a stomach ulcer.