An inflamed blister that forms beneath the epidermis after vigorous or repeated rubbing of the skin, e.g., on the toes or heels during sports activities. a collection of fluid, usually serum, between the layers of the skin, causing an elevated lesion.Caused by friction, burns, local allergic responses, e.g. stings.nless a blister is painful or interferes with function because of its size, it should not be punctured. If puncturing is required, it should be done aseptically, with the skin left in place. A sterile pressure bandage should then be applied.
Unstable angina (UA) is a type of angina pectoris that is irregular.It is also classified as a type of acute coronary syndrome. It can be difficult to distinguish unstable angina from nonâQ-wave myocardial infarction.nstable angina (UA) is a type of angina pectoris that is irregular.
Angina pectoris (or angina for short) is chest pain or discomfort that occurs when the heart muscle is temporarily not getting enough oxygen-rich blood. A bout of angina is not a heart attack, but it means that you're more likely to have a heart attack than someone who doesn't have angina.he most common types of angina are stable angina and unstable angina. Unstable angina is a dangerous condition that requires emergency treatment. It occurs more often in older adults and is a sign that a heart attack could occur soon.