4 meanings of USMLE acronym and USMLE abbreviation. Get the Medical definition of USMLE by All Acronyms dictionary. Top Definition: United States Medical Licensing Exam In Medical dictionary category.
Pericarditis Definition. Inflammation of the lining around the heart (the pericardium) that causes chest pain and accumulation of fluid around the heart (pericardial effusion). There are many causes of pericarditis, including infections, injury, radiation treatment, and chronic diseases. SOURCE: MedTerms.
This blood clot can block the blood flow through the heart muscle. When the heart muscle is starved for oxygen and nutrients, it is called ischemia. When damage or death of part of the heart muscle occurs as a result of ischemia, it is called a heart attack or myocardial infarction (MI).About every 43 seconds, someone in the United States has a myocardial infarction (heart attack). Your heart muscle needs oxygen to survive.o. But a heart attack can cause a cardiac arrest. Heart attacks are caused by a blockage that stops blood flow to the heart. Cardiac arrest is caused when the heart's electrical system malfunctions.