Ch 9 ASDs Flashcards
Sinus venosus ASDs can be located nearby the ___. Select all correct answers
IVC + SVC
Which ASD is caused by excessive resorption of the primum septum?
Ostium secundum ASD
Ostium primum defects cannot be closed percutaneously (through transcatheter procedures). True or False
True
What lesion are sinus venosus ASDs commonly associated with?
Anomalous pulmonary vein drainage
A hemodynamically significant LT to RT shunt will have a Qp:Qs ratio of what?
> 1.5:1
Although sometimes difficult to image in TTE, this image depicts a sinus venosus ASD. True or False
True
Located in the area of the fossa ovalis, this clip depicts what type of ASD?
Secundum ASD
(zoomed in clip of IAS)
Located in the area of the fossa ovalis, this clip depicts what type of problem with the IAS?
PFO
(unsure what view this clip is)
Located closest to the AV valves, this image depicts which type of ASD?
Ostium primum
Ostium secundum is the most common type of ASD. True or False
True
What echo measurements are required to calculate a Qp:Qs? (Keep in mind the right sided ones need to match. Select all correct answers)
-2D diameter of RVOT
-VTI of RVOT
-2D diameter of LVOT
-VTI of LVOT
(no Vmax)
The type of ASD located in the area of the fossa ovalis is?
Ostium secundum defect
The primary hemodynamic effect of ASDs will cause?
Right heart dilation
The referring physician ordered a bubble study echocardiogram after the pt suffered a mild TIA. What can the bubble study determine?
Rule out a patent foramen ovale (PFO)
A bubble study was performed in the left arm antecubital vein. During the bubble study, there was opacification (bubbles) of the coronary sinus first and then to the right heart. What was the sonographer ruling out in this bubble study?
Persistent left superior vena cava
