chapter 17 Flashcards
(32 cards)
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.
Afterload
the pressure that the ventricles must overcome in order to open the aortic and pulmonic valvular cusps.
Electrocardiogram wave
Electrical representations of the cardiac cycle are documented by deflections on recording paper
cardio output
The amount of blood ejected from the left ventricle over 1 minute
JVD (jugular and neck vein distention),
indicates elevation of the central venous pressure commonly seen with congestive heart failure, fluid overload, or pressure on the superior vena cava
MI (myocardial Infract)
During infarction there is complete disruption of oxygen and nutrient flow to the myocardial tissue in the area below a total occlusion. Infarction leads to the death of the myocardial tissue unless floe of blood is reestablished.
Valve disease
Disease of the valves denotes either narrowing of the valves leaflets or incompetence of the same leaflets. may be caused by rheumatic fever, congenital defects, MI, and normal aging.
VSD (ventricular septal defect),
Regurgitation occurs through the defect, resulting in a holosystolic murmur. the murmur is loud, coarse, high-pitched, and heard at the LSB, third to fifth ICS.
Heart Failure (left and right sided),
inability of the heart to produce a sufficient pumping effort. Most commonly, both right-sided and left-sided heart failure are present. left-sided heart failure causes blood to back up into the pulmonary system and results in pulmonary edema. right-sided heart failure causes backup of the blood into the systemic circulation and leads to distended neck veins, liver congestion, and peripheral edema.
tetralogy of fallot,
this condition involves four cardiac defects: dextroposition of the aorta, pulmonary stenosis, right ventricular hypertrophy, and ventricular septal defect.