Prosthetic Valve Quiz Flashcards
. The most
common
problem
associated with
prosthetic valves
is:
A.Strut fracture
B. Improper seating
C.Clotting problems
D.Disk fracture
clotting problem
Quantification of prosthetic - valve motion is best accomplished by:
A. M -mode scanning
B. Two -dimensional scanning
C. Doppler ultrasound
AD. Magnetic resonance imaging (MRI)
M-mode scanning.
(bc of temp res high FR)
The Starr - Edwards ball prosthesis has the following number of orifices:
A. One
B. Two
C. Three
D. Four
E. Five
C
- All prosthetic valves are inherently restrictive. Therefore, evaluating a prosthetic valve for stenosis, one must take into account not only the velocity of the blood flow but also: (True or False)
- Valve size
- Patient size
- The age of the valve
- Cardiac output
- T
- T
- F
- T
- A mechanical prosthesis that reveals incomplete or delayed opening on the M -mode echo suggests: (True or False)
- Deterioration of the Valve
- Swelling of the valve
- Thrombus on the valve
- Dehiscence of the valve
- False
- True
- True
- False
- A doppler recording from a stenotic mitral bioprosthesis might include: (True or False)
- A rapid diminution in diastolic velocity
- High peak velocity
- Slow diminution in diastolic velocity
- Turbulent flow
- False *diminution: a reduction in the size, extent, or importance of something.
- True
- True
- True
- Higher than normal maximum velocities recorded in a prosthetic valve may be seen with associated: (True of False)
- Increased left ventricular end-diastolic pressure
- Transprosthetic or paraprosthetic regurgitation
- Congestive heart failure
- Increased cardiac output
- False
- True
- False
- True
- The best approach(es) for obtaining the highest velocity in an aortic prosthesis is/are from the: (True or False)
- Left parasternal view
- Apex
- Suprasternal notch
- Right sternal border
- False
- True
- True
- True
- Continuouswave Doppler is the Doppler technique of choice in measuring Transprosthetic blood flow velocities because: (True or False)
- It enables the operator to localize the peak velocity
- It ensures registration of the peak velocity
- Prosthetic valves are often stenotic and produce increased velocities
- It is easier to record the flow velocities with continuous-wave Doppler
- False
- True
- True
- False
- Abnormalities of Bioprosthetic valve seen on echocardiography include: (True or False)
- Excessive rocking motion of the valve apparatus
- Increased leaflet thickness
- A focal mass of echoes attached to the valve leaflets
- Shadowing of the struts and sewing rings
- True
- True
- True
- False
- Mechanical prosthetic valves include: (True or False)
- Ball in cage
- Disk in cage
- Tilting disk
- Double tilting disk
- True
- True
- True
- True
- Bioprosthetic leaflet thickening observed on the echo can be associated with : (True or False )
- Valvular stenosis
- Infectious endocarditis
- Normal prosthesis function
- Peripheral embolization
- True
- True
- False
- True
- All three struts of the aortic or mitral bioprosthesis can be seen when imaged from the:
- Parasternal long-axis view
- Parasternal short-axis view
- Apical four-chamber view
- Subcostal four-chamber view
2
- Mitral prosthetic valvular dehiscence is demonstrated on echocardiography by:
A. Valve leaflet echoes appearing in the left atrium in systole.
B. Rocking, erratic motion of the valve apparatus
C. Thickened appearance of the valve apparatus
D. A bright, focal mass on one valve leaflet
B
- Rounding of the E point detected by M mode in a Bjork - Shiley (no longer implanted) mechanical prosthesis in the mitral or tricuspid position indicates:
A. Normal function of the valve
B. Regurgitation of the valve
C. Obstruction of the valve
D. A flail leaflet
C
