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59 Cards in this Set
- Front
- Back
what heart sound is atrial contraction
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S4
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mitral closure is __ wave
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C
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__ wave is peak LA pressure near end systole
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V
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suction by rapid filling is __
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y
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conditions that increase LA V wave pressure cause what heart sound
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S3
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A wave is
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mitral valve flow
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what might cause an S4
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stiff wall
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a large pressure drop cause (high or low?) velocity jets
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high
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is fast high or low frequency
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high
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what does aortic regurg sound like
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holosystolic high pitch because big pressure drop
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what does diastolic regurg murmur sound like
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low decrescendo caused by incompetent aortic/pulmonic valve
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what does mitral stenosis murmur sound like
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low rumble with two components
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what two valve problems cause diastolic murmurs
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mitral stenosis
Aortic insufficiency |
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______ is the most common valve disease in the western world
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AS
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what is the most important initiating factor of AS
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mechanical shear stress
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hwat is normal aortic valve size
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3.5-4cm2
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what is severe AS size
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<.7
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T or F. about 20% of severe AS patients develop platelet malfunction and decline in vWF which leads to bleeding
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true
this can resolve with valve replacement |
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why can't AS increase CO during exercise
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becuase are pushing against fied outflow tract obstruction... inability to perfuse with reflex vasodilation of exercise leads to syncope
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what is bezold jarish
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exertional syncope
mechanoreceptors are stimuated by high pressure and reduce contractility in the face of vasodilation and cause syncope |
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how much area is usually lost per year with AS patients
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.1-.2cm2
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what happens to afterload and preload in aortic insufficiency
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increase
increase |
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what way does FS move in AS
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left and up
increased pressure |
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the shorter _____ the less time there is for insufficiency
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diastole
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what valve problem might imrpove with exercise
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AI
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what does aortic insufficiency sound like
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systolic cres decres
diastolic decrescendo |
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why does diastolic decrescendo stop before the end of diastole in the acute setting
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becuase such an increase in LV pressure has already slammed the mitral valve shut
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what valve problem causes hyperdynamic pulses
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compensated AI
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in what valve problem do you operate before symptoms
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AI
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do you operate on AS before or after sx start
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after sx
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what is the advantage of porcine valve
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no long term anticoagulation
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what is a con of porcine valve
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poor hemodynamics
progressive calcification |
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what is the procedure of choice for aortic valve endocarditis complicated by abcess
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homografts-- cryopreserved explanted human aortic root implants into recipient as entire new aortic valve and root
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what is the advantage of a mechanical valve
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good hemodynamics
bad-- thrombosis |
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T or F bio valves are much more likely to degenerate than mechanical
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true
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what is the first thing to compensate increased fluids in increased LAP
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lymph
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T or F. the mitral valve can be reduced by 50% before any significant pressure gradient develops
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true
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why does exercise capacity decrease quickly in mitral stenosis
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decreased diastolic filling
decreased CO increased LAP increased lung edema |
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a consequence of MS ______ is caused by elevation of pressures in the pulmonary venous and capillary system which develops hemorrhages in the pulm vasculature and can cause chronic bronchitis and pink froth
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hemoptysis
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what is the primary hemodynamic abnormality in mitral stenosis
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LAP
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what changes in heart sounds occur due atrial stenosis
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OS opening snap
increased S1 diastolic rumble |
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what are MDM and PSM
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mid diastolic murmur
presystolic murmur due to aortic stenosis |
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do you need surgery for MS
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yes absolutely
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T or F. endocarditis can cause Mitral insuff
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true
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what happens to preload and after load in mitral insufficiency
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increased pre
decreased after |
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when does surgery focus on repair and not replace
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mitral insufficiency
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what does a huge v wave tell you
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mitral insufficiency
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holosystolic murmur with S3 is
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mitral insufficiency
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virtually all cases of pulmonic stenosis are ___ in origin
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congenital
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almost all tricuspid stenosis is caused by
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rheumatic valve disease
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what valve is most prone to trauma
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tricuspid
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heart failure caused by endocarditis is a result of acute valve ____
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insuff
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what are duke criteria for
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endocarditis
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what does the HACEK group tend to cause
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endocarditis
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new murmur, blood infection... could be
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endocarditis
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what is your low rumble murmur
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MS
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is MR high or low
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high
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infective endocarditis that causes HF which is attributed to acut_____
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insufficiencyq
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in _____ mitral regurg, atrial pressure increases at end systole and is indicated by a large V wave
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chronic
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