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blood vessel that allows fetal blood to bypass the lungs; partially closes 10-15 hours after birth and completely seals 10-21 days after birth; closure of DA after birth allows blood flow to reach the lungs only through the pulmonary artery; sends bluer blood to the organs in the lower half of the fetal body
blood vessel that allows fetal blood to bypass the fetus liver. Carries blood with oxygen and nutrients from the umbilical cord straight to the right side of the fetuss heart. Closes shortly after birth when umbilical cord is cut
What do you check with digoxin?
Risk factors for congenital heart disease
chronic illnesses such as diabetes or phenylketonuria, booze, environmental toxins, family history
Tetralogy of Fallot 4 defects
VSD, pulmonic stenosis, overriding aorta and ventricular hypertrophy
Clinical manifestations of tetralogy of fallot
cyanosis, systolic murmur, anoxic spells, risk for emboli, seizures and LOC or sudden death after anoxic spell
Tetralogy of Fallot vascular resistance
pulmonary is higher then right to left and if systemic is higher then left to right
Coartication of the aorta description
narrowing near the insertion of the ductus arteriosus which results in increased pressure to head and upper body and decreased pressure to body and lower extremities
Clinical manifestations of coartication of the aorta
high BP and bounding pulses in arms, weak or absent femoral pulses, cool lower extremities with lower BP; severe acidosis and hypotension; risk for HTN, ruptured aorta, aneurysm and stroke
Truncous arteriosis definition
failure of division of pulmonary artery and aorta which results in single vessel-blood from both ventricles mixes in common artery which leads to desaturation and hypoxemia; blood goes from heart to lower pressure pulmonary arteries
Clinical manifestations of truncous arteriosis
moderate to severe HF and variable cyanosis, poor growth and activity intolerance; holosystolic murmur and left sternal murmur with a diastolic murmur present if truncal regurg is present
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