Perfusion Flashcards
what are the 3 changes in circulation of the fetal heart
foramen ovale
ductus arteriosus
ductus venosus
what returns blood to the R side of the heart
vena cava
what returns blood to the L side of the heart
pulmonary veins
what area of the fetal heart has the highest O2 concentration
R atrium
in the fetal heart, blood enters the vena cava through what
ductus venosus
in the fetal heart, blood flows from the R to L atrium through what
foramen ovale
what are the 2 categories of heart defects
congenital
acquired
what are the 4 causes of acquired heart defects
infection
autoimmune response
environment
family
what is the most common CHD
ventricular septal defect
which classification mixes blood in the pulmonary circulation; L to R shunt
acyanotic
which classification mixes blood in systemic circulation; R to L shunt
cyanotic
what are the 4 new classifications
increased pulmonary blood flow
decreased pulmonary blood flow
obstructed blood flow
mixed blood flow
which of the 2 old classifications is more serious
cyanotic
which 3 defects are increased pulmonary blood flow
atrial septal defect
ventricular septal defect
patent ductus arteriosus
which 3 defects are obstruction of flow from ventricles
coarctation of aorta
aortic stenosis
pulmonary stenosis
which 2 defects are decreased pulmonary blood flow
tetralogy of fallot
tricuspid atresia
which defect is mixed blood flow
transposition of great arteries
what are the 4 defects w/ tetralogy of fallot
pulmonic stenosis
R ventricular hypertrophy
ventricular septal defect
overriding aorta
what are s/s associated w/ obstruction to blood flow
diminished pulses
pallor
delayed capillary refill
decreased urinary output
what are risk factors of CHD
drugs rubella xray infection alcoholism > 40 years old IDDM heredity
what are some s/s
weak cry diaphoresis heart murmur FTT squatting
what is the #1 diagnostic procedure
cardiac catheterization
what would hematologic testing show
viscous blood
what are the 3 types of cardiac caths
diagnostic
interventional
electrophysiology
