NUR 245 Exam 3 Flashcards
Thrill
murmur that can be palpated
bruit
vascular murmur- abnormal sound generated by turbulent flow of blood in an artery due to either an area of partial obstruction or a localized high rate of blood flow through an unobstructed artery
Central venous pressure(CVP)
blood pressure in the venae cava near the right atrium of the heart.
-reflects the amount of blood returning to the heart and the ability of the heart to pump the blood back into the arterial system
precordium
area on anterior chest overlying heart and great vessels
cardiac cycle
rhythmic flow of blood through heart
cardiac cycle
rhythmic flow of blood through heart
diastole
ventricles relaxed
- fill with blood
- 2/3 of cardiac cycle
systole
heart’s contraction
- blood pumped from ventricles fills pulmonary and systemic arteries
- 1/3 cardiac cycle
s1
closure of AV valves
-signals beginning of systole
s2
closure of semilunar valves
-end of systole
murmur
whooshing or swishing sound produced by blood turbulence due going through heart valves
Gallops
extra heart sounds
third heart sound (s3)
occurs immediately after s2
-AV valves oopen an atrial blood first pours into ventricles
fourth heart sound (s4)
- Occurs at end of diastole
- at presystole
- when ventricle resistant to filling
- occurs just before s1
venous great vessels
jugular veins
SVC & IVC = carry deoxygenated blood to right heart
pulmonary artery= carry venous blood from right heart to lungs with blood picks up O2 and releases cO2