WEEK 8- HEART AND VESSELS Flashcards
heart and blood vessels (43 cards)
where do u auscultate the carotid artery
Location
Angle of jaw, midcervical, base of neck
what do u wish to not hear when auscultating
BRUIT
what is the positioning for the carotid artery
sitting upright
what is the positioning for the precordium
supine with head and chest slightly elevated
what is the angle your head should be elevated for the jugular venous pulsations
30-45 degrees
whats the acronym for auscultating the carotid arteries
AASURR
what does AASURR stand for
A- ask patient to tilt head slightly to one side
A- ask patient to hold breath
S- start at the angle of the jaw, mid neck, and at the base of the neck
U- use the bell of the stethoscope
R- remind the client to breathe
R- repeat on the other side
how to inspect external jugular venous pulsations
External jugular veins
Location: Over sternomastoid muscle
Present or full
how to inspect internal jugular venous pulsations
Internal jugular pulsation
Location: Suprasternal notch or origin of sternomastoid muscle
Diffuse with two visible waves
internal jugular characteristics
lower, undulant diffuse with 2 visible waves.
disappears as person sits up
carotid pulse
higher, medial to sternomastoid muscle,
-brisk, localized with one wave
-does not vary with R
-unaffected by position
cardiovascular system is made up of 2 things
heart and blood vessels
the two types of blood vessels
pulmonary and systematic circulation
the heart landmarks
- precordium
- mediastinum
layers of the heart
pericardium-outer layer
epicardium
myocardium- muscular layer of the heart
endocardium- innermost layer of the heart
what are the 4 valves
atrioventricular
- tricuspid
- mitral/bicuspid
semilunar
- pulmonic
- aorta
the 2 types of circulation
systematic and pulmonary
what are the 2 phases of the cardiac cycle
systole and diastole
diastole
- pressure is greater in atria than ventricles
- av valves open
- ventricles fills
atrial kick
- 25% of stroke volume
systole
- ventricular pressure greater than atrial
- AV valves close (sound of S1 “lub”
- all 4 valves closed
- pressure builds in ventricles
- SL valves open and ventricles contract
- ventricular pressure falls below aortic
(SL valves comes sound of S2 “dup”)
what is split t-dup
its because the aortic valve closers earlier than pulmonic
- more to the right heart
- less to the left
electrical conduction system is made up of
- the cardiac cycle
- abilities of cardiac muscle cells
- the pathway of the electrical conduction system of the heart
what is CO
cardiac output is the amount of blood pumped by ventricles during 1 min.
whats the measurement for CO
stroke volume x HR= CO