Cardiac Diseases Flashcards
cluster of electricity relating cells determine frequency which determines rate
SA node
conduction delayed slightly and moves to purkingee fibers
AV node
length of time required for atria to depolarize, contraction of atria
P wave
time for contraction of ventricle
QRS complex
When ventricle depolarizes or resets, time of rest after contraction
T wave
measure of ventricular contraction length, elevation is first sign of heart attack
ST segment
inadequate blood supply to a local area of the body due to blockage of the blood vessels in the area
Ischemia
chest pain due to reduction of blood supply to a portion of the heart without myocardial necrosis
angina
necrosis of myocardium due to reduction or interruption of the blood supply
myocardial infarction
reduction of blood flow to the heart muscle caused by a blockage of a coronary vessel from a blood clot that formed elsewhere in the body, became dislodged, and traveled to the heart
coronary embolism
a regulatory protein released when cardiac cell necrosis occurs
Troponin T
a clinical syndrome resulting from increased pressure in the pulmonary or peripheral venous system
congestive heart failure
part of the body’s defense against volume overload and hypertension
Brain Natiuretic Peptide
is a cardiovascular disease that affects the blood vessels supplying blood to the brain
stroke
blood clot blocks blood flow to a part of the brain
cerebral thrombosis
