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
which side of the heart is the cardiac cath threaded into
right side
what is the 1st thing done post cardiac cath
vital signs
Should the extremity distal to the cath be extended or flexed
Extended
G
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