Cardiology Flashcards
Pulmonary vasculature resistance is ___ in fetal circulation than neonatal
a. higher
b. lower
a. higher
Prostaglandin E2 concentration is ___ in fetal circulation than neonatal
a. higher
b. lower
a. higher
The lungs are bypassed in fetal circulation by what 3 shunts?
ductus arteriosus
foramen ovale
ductus venosus
The ___ connects the inferior vena cava to the intrahepatic portion of the umbilical vein.
ductus venosus
The ___ connects the pulmonary artery to the aorta
ductus arteriosus
What is the right to left shunt?
blood from right atrium passes through the foramen ovale into the left atrium and into systemic circulation
Hypoplastic left heart syndrome symptoms begin when ___ closes
patent ductus arteriosus
What condition is characterized by small to nonexistent left ventricle and narrow aorta?
hypo plastic left heart syndrome
Tetralogy of fallot:
The degree of symptomatology is based on the severity of __
pulmonary stenosis
4 lesions:
- pulmonary artery stenosis
- ventricular septal defect
- overriding aorta
- right ventricular hypertrophy
Surgical or interventional repair for hypoplastic left heart syndrome?
Norwood procedure
bidirectional Glenn
fontan
Goal of preoperative pharmacotherapy for transposition of the great arteries is to maintain the ___
patent ductus arteriosus
to ensure that oxygenated blood flows from pulmonary artery into the aorta
___ infusion is preoperative pharmacotherapy for transposition of the great arteries
prostaglandin E1
Titration of preoperative prostaglandin E1 infusion for transposition of the great arteries?
0.03 - 0.1 mcg/kg/min every >= 20 mins
What is indication of therapeutic response to prostaglandin E1 infusion in pts with restricted systemic blood flow and acidosis?
a. increase in BP and pH
b. increase in oxygenation
a. increase in BP and pH
What is indication of therapeutic response to prostaglandin E1 infusion in pts with restricted pulmonary blood flow?
a. increase in BP and pH
b. increase in oxygenation
b. increase in oxygenation