Cardiovascular problems Flashcards
Contraction of both the atria and ventricles
Systole
Relaxation of both atria and ventricles
Diastole
Volume of blood that returns to the heart
Preload
Resistance against which the ventricles must pump when ejecting blood.
Afterload
closure of av valves
S1
closure of semilunar valaves
S2
sound from ventricular gallop, blood rushes rapidly from the atrium to the ventricle
S3
sound from atrial contraction
S4
inability of the valve to close completely
Regurgitation
inability of the valve to open completely
Stenosis
sound that represents turbulence or disruption of blood flow
Murmurs
Barrowing of orifice when open during diastole
Mitral stenosis
test that records the electrical activity of the heart
ECG
8mm in duration that takes 2-5 mins to disappear
+4 severe pitting edema
indicates atrial depolarization/contraction
p wave