Ch 33 Fetal Echocardiography Flashcards
In the ____ week of gestation the vascular system begins to fuse, thus forming the primitive heart
3rd week
Umbilical views return ________ blood from the placenta
oxygenated blood
caudal regression of the primitive heart; receives all blood returning to the heart and is initially a separate chamber that opens into the RIGHT atrium
Sinus venous
The bulbous cordis develops into the _______
Right ventricle
During the ___ and ___ week of development the division of the 4 chambers occur
4th and 5th week
The _____ grows from the dorsal wall of the primitive atrium and fuses with the endocardial cushions
Septum Primum
There is an opening between the free edge of the septum secundum and the dorsal wall of the atrium called the _______
Foramen ovale
The sino-artial node forms in the wall of the sinus venous near its opening into the _____
right atrium
bradycardia is less than ___ bpm
60
tachycardia is more than ___ bpm
200
If communication persists between the aorta and the pulmonary artery it is called _________
patent ductus arteriosis
Communication is open between the right and left sides of the heart through the _____ and between the aorta and the pulmonary artery via the _______
Fossa ovale
Ductus arteriosis
What is used to evaluate cardiac motion and heart rate?
Motion- mode
______ defect occurs when the foramen oval fails to close and persists after birth
atrial septal defect
____ lies closest to the chest wall
The RIGHT ventricle
The _____ lies closest to the fetal spine; ____ lies closest to the left hip
Left atrium ; Left ventricle
valve between the left ventricle and left atrium
Mitral valve
valve between the right ventricle and right atrium
Tricuspid valve
The tricuspid valve is located just slightly ____ to the mitral valve
inferior
a gestational age of 20 weeks should show a normal aortic measurement of __ mm
4 mm
The normal septal thickness should correspond to gestational age; 2nd trimester septum should measure about __ to __ mm;
3rd trimester septum should measure UNDER __mm
2 to 2.5 mm
under 4 mm
The ____ is a view of the heart that shows the pulmonary artery arising from the right ventricle
RVOT
The ____ is a view of the heart that shows the ascending aorta arising from the left ventricle
LVOT
What is considered to be the 5th chamber?
the aortic root
There are 4 pulmonary veins that bring blood from the lungs into the posterior wall of the ____. * 2 upper left and right
* 2 Lower right and left
{right lower pulmonary view is not imaged in 4 chamber}
Left atrium
What separates the left and right heart?
Interventricular septum
Separates the right and left atria; atrial septal defect {ASD} if persists after birth
Foramen ovale
Veins that returns blood from the yolk sac
VITELLINE VEINS
veins that return blood from the embryo
CARDINAL VEINS
Vein that returns oxygenated blood from the placenta
UMBILICAL VEINS
On the 4 chamber view, all the pulmonary veins are imaged except for the _____
Right LOWER vein
