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.
Viruses can also cause pain in the chest area. Other causes of chest pain include: Rib problems. Pain from a rib fracture may worsen with deep breathing or coughing. It is often confined to one area and may feel sore when you press on it.iruses can also cause pain in the chest area. Other causes of chest pain include: Rib problems. Pain from a rib fracture may worsen with deep breathing or coughing. It is often confined to one area and may feel sore when you press on it.