CH 11: Pathology Flashcards
diastole
lower number; relaxation phase of the heartbeat
systole
higher number; contraction phase of the heartbeat
arrhythmias
abnormal heart rhythms (dysrhythmias)
bradycardia and heart block (atrioventricular block)
failure of proper conduction of impulses from the SA node through the AV node to the atrioventricular bundle (bundle of His)
pacemaker
treats delays and abnormalities in ventricular contractions (as in LBBB)
flutter
RAPID but REGULAR contractions, usually in the atria
- nl: 60-100, here they are 300 beats per min
fibrillation (A-fib)
very rapid, random, inefficient and irregular contractions of the heat
- 350 beats or more per minute
congenital heart disease
abnormalities in the heart at birth
coarctation of the aorta (CoA)
NARROWING (coarctation) of the aorta
patent ductus arteriosus (PDA)
passageway (ductus arteriosus) between the aorta and the pulmonary artery remains open (patent) after birth
- doesn’t close
- in utero being shunted from aorta to pulmonary
septal defects *
small holes in the wall between the atria (atrial septal defects- ASP) or the ventricles (ventricular septal defects- VSP)
congestive heart failure (CHF) *
heart is unable to pump its required amount of blood
coronary artery disease (CAD)
disease of the arteries surrounding the heart
ischemia
blood flow is decreased
acute myocardial infarction
should be red, and if its recent then its yellow and any older it is grey, white