Quizzes Flashcards
What initiates electrical depolarization through the heart?
SA node
Which chamber of the heart pumps blood to the lungs?
right ventricle
What does deoxygenated blood travel through from the heart to the lungs?
pulmonary artery
The blood vessel responsible for delivery of oxygen and nutrients to the anterior aspect of the left ventricle is known as what?
LAD (left anterior descending) coronary artery
What separates the left atria from the left ventricle?
mitral
What separates the right and left ventricles?
interventricular septum
Ventricular contraction on EKG
QRS complex
What do the heart sounds lub dub correspond to?
closing of heart valves
What structures attach the papillary muscles to the AV valves?
chordae tendineae
Which of these is an invasive technique used to aid in determining cardiac dysfunction?
A. auscultation
B. EKG
C. echocardiogram
D. angiogram
angiogram
Amount of blood pumped during one heartbeat
stroke volume (SV)
blood supply providing oxygen and nutrients to the adventitial layer of the aorta is provided by…?
vaso vasorum
Which layer of blood vessel provides the muscular contraction or relaxation needed for vasodilation and vasoconstriction?
tunica media
unique structures in veins that regulate venous return and prevent backflow
valves
Which of these does not control high blood pressure?
A. beta blockers B. coumadin C. diuretics D. ACE inhibitors E. all of the above
coumadin
Decreasing parasympathetic stimulation of the SA node will result in which HR response?
increase
increasing sympathetic stimulation of SA node leads to what HR response?
increase
Amount of blood in left ventricle after filling
LVEDV
EF is normally what percentage?
60-75%
Which of these is least likely to result in decreased EF?
A. mitral valve stenosis
B. MI to left ventricular wall
C. CHF
D. aortic valve stenosis
mitral valve stenosis
How do you access the heart for a CABG?
median sternotomy
How could backflow occur?
genetic malformation
prolapse
stenosis
What can cause regurgitation in the AV valves?
valve leaflet damage
tearing of chordae tendineae
damage to annular ring
dysfunction of papillary muscles
What can be cause by aortic valve stenosis
left ventricular hypertrophy
pulmonary hypertension
cor pulmonale
left ventricular chamber distension
right sided heart failure aka
cor pulmonale
Can untreated coronary artery blockage result in a DVT?
no
S/S of orthostatic hypotension from sitting to standing
dizziness
lightheadedness
syncope
decreased blood pressure
surgical treatments for acute or chronic causes of heart failure
TAVI
LVAD
heart transplant
How is TAVI being done currently?
femoral artery catheter
transthoracic apical approach
Leading cause of pulmonary embolism
DVT
