OB Heart Test
the fetal heart should occupy approximately ___of the thoracic cavity
1/3
Fetal bradycardia is defined is prolonged fetal heart rate less than or equal to __ BPM
100
The normal fetal heart rate is generally between ___
120-160
Fetaltachycardia is defined as a heart rate over ___ beats per minute
180
Most commonly acquired image of the fetal heart
4 chamber view
The division of the heart into 4 chambers occurs during the __ and __ weeks of fetal development
4,5
The average cardiac axis is ___ degrees
45
the embryonic heart begins to beat at begins __ week
5
When fetal pleural effusion is encountered, a careful search of the ___ should be attempted.
Diaphragm
"Hockey stick" appearance
Ductal arch
Imaging used to evaluate cardiac motion
M mode
Oxygenated blood from ___ enters the fetus through the __
Placenta/ umbilical vein
Ectopia cordis is defined as all or part the heart is located outside the chest cavity
True
Congenital lesions of the heart that is most common
Ventricular septal defect
abnormalities is communication between the right and left atrium that persists after birth
atrial septal defect
Which heart rate is associated with fetal asphyxia
below 80
The visualization of the fetal stomach within the fetal chest is most indicative of:
diaphragmatic hernia
blood shunted into the IVC from the umbilical vein by what
ductus venosus
Sonographic findings for hypo plastic right heart: absent or very small left ventricle t/f?
false
The aortic arch has a hockey stick t/f
false
The normal fetal lungs appear on ultrasound as which
homogenous and moderate more echogenic than the liver
herniation through the foramen of Bochdalek is usually found on which one of the following portions of the diaphragm
left
Closest to the fetal spine
left atrium
In utero, the foramen oval opens toward what
left atrium
An echogenic intracardiac focus is most often seen within the
left ventricle
Tetraology of Fallot consists of all except
left ventricular hypertrophy
Outflow tract give rise to the aorta
left ventricular outflow tract
is between left atrium and left ventricle
mitral
The accumulation of fluid around the lungs is
pleural effusion
the sonographic "bat wing" is indicative of:
pleural effusion
describes transposition of the great vessels
the aorta arises from the right ventricle and the pulmonary artery arises from the left ventricle
True about the heart
the chamber closest to the fetal spine is the left atrium
The aorta is connected to the right ventricle and pulmonary artery is connected to the left ventricle in what condition
transposition of the great vessels
An echogenic intracardiac focus is often seen in cases of
trisomy 21
The most common defect postally is
ventricular septal defect
