chapter 17 Flashcards
Assessment of cardiovascular
Inspection.
palpation.
percussion.
auscultation.
Inpection
inspect for bulges and masses, symmetry
Palpation
should not feel any pulsations, heave, or vibratory sensation against palm.
Percussion
resonance all over lung tissue. dullness over heart.
auscultation
listen for S1 and S2. possible S3 and S4 or bruits (tympanic) or murmurs.
Apical pulse.
felt at the apex of the heart
Cardiac cycle
the events of one complete heartbeat-that is, the contraction and relaxation of the atria and ventricles.
Calculating stroke volume
stroke volume= cardiac output/ heart rate for 1 minute.
cardiac output
the amount of blood ejected from the left ventricle over 1 minute. normal in adult 4 to 8 liters/ minute
Cardiac output =stroke volume/heart rate for 1 minute
Carotid Artery assessment
assess presence, strength and equality. palpate each carotid pulse separately. Normal findings bilaterally should demonstrate equality in intensity and regular patterns. the pulses should be strong not bounding.
Heart sounds and Murmurs
S1 lub AV valves close
S2 dub aortic and pulmonic valve close
S3 ventricular gallop. when AV valve open and blood flow into the ventricles and cause vibrations
S4 atrial gallop
MURMURS harsh blowing sounds caused by disruption of blood flow into the heart in between the chambers of the heart or from the heart into the pulmonary or aortic systems
atherosclerosis
renal arteries
carotid bruit
a loud blowing sound, is an abnormal finding. it is most often associated with a narrowing or stricture of the carotid artery usually associated with atherosclerotic plaque
marfans syndrome
degenerative of the connective tissue, which over time may cause the ascending aorta to either dilate or dissect leading to abrupt death.
Preload,
the amount of blood and stretching of the ventricular myocardial fibers.