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41 Cards in this Set

  • Front
  • Back
what is the definition of congestive heart failure
failure of heart to pump an adequate amt of blood to supply the metabolic requirements of the organs..can be due to pathologic conditions inside or outside the heart
ways to compensate for CHF
myocardial hypertrophy
ventricular dilation
physiologic mechanisms (inc. HR, inc. intravascular volume, etc.)
etiology (causes) of CHF
IHD
hypertension
myocarditis
cardiomyopathy
valvular disease
what happens if you have CHF
RV failure:
congestion of liver (nutmeg)
congestion of spleen
edema of subcut. tissues
(feet and ankles)
LV failure:
pulmonary edema
LV and/or RV failure:
cerebral hypoxia
LV failure leads to RV failure
cerebral hypoxia is caused by
left or right ventricular failure
pulmonary edema is caused by
left ventricular failure
congestion of liver (nutmeg) and spleen is caused by
RV failure
edema of subcutaneous tissues in feet/ankles is caused by
RV failure
RV failure causes
congestion of liver (zonal/nutmeg pattern) and spleen; edema of subcut. tissues in feet and ankles
___ ventricular failure leads to ____ ventricular failure
left leads to right
congenital heart disease is divided into 2 forms:
cyanotic
non-cyanotic
what causes cyanotic congenital heart disease
shunting of poorly oxygenated systemic venous blood to arteries BYPASSING THE LUNGS
(patent ductus arteriosus, vsd, etc.)
ductus arteriosis connects
pulm artery to aorta
tetralogy of fallot
VSD
narrowing RV outflow
overriding aorta
RV hypertrophy
what causes IHD
narrowing of the coronary arteries at least 75% by atherosclerosis
4 types of IHD
angina pectoris
acute MI
chronic ischemic heart disease
sudden cardiac death
what initiates coronary artery thrombosis
fissure in the fibrous cap of an atherosclerotic plaque
diagnostic tests for acute MI
ECG changes
Elevation of serum enzymes (creatine kinase) and troponin derived from necrotic myocytes
pathology of acute MI (the progression of what happens)
coagulative necrosis (few hours)

neutrophil infiltration (few days)

granulation tissue (1 week)

scar formation (weeks/months)

C
N
G
S
what is chronic ischemic heart disease
gradual onset of chronic congestive heart failure with at least one large LEFT VENTRICLULAR SCAR (healed infarct); there is biventricular hypertrophy and dilation of all cardiac chambers
the following symptoms describe which type of heart diseaes:
at least 1 large left ventricular scar (healed infarct), biventricular hypertrophy, dilation of all cardiac chambers
chronic ischemis heart disease
a patient has to survive at least ______ after a heart attack to be able to see it in an autopsy
12 hours
what are the 3 morphologic patterns of cardiomyopathy
dilated
hypertrophic
restrictive
dilated cardiomyopathy
dilation of all 4 hrt chambers
familial in 25-35% of cases
poor ventricular contraction (systolic dysfunction)
hypertrophic cardiomyopathy
primary, genetic cardiomyopathy
point mutation
autosomal dominant
more hypertrophy in INTERVENTRICULAR SEPTUM than the left ventricle free wall
obstructs left ventricular outflow
cardiac disarray of myocytes
restrictive cardiomyopathy
decr. vent. compliance (stiffer wall)
impaired ventricular filling during diastole
defn of myocarditis
inflamm involving the myocardium
most common cause of myocarditis in US is
viral infection (enterovirus)
myocarditis can be caused by
virus (most common in US...enterovirus)
bacteria
fungus
parasite
toxing
hypersensitivity
auto-immune
pathology of viral myocarditis
lymphocytic infiltrate with foci of necrosis
pathology of pyogenic bacteria myocarditis
abscesses
pathology of parasite myocarditis
parasites infect individual myocetes
pathology of hypersensitivity myocarditis
perivascular inflammatory infiltrate with many eosinophils
clinical manifestations of LV failure
pulmonary edema and congestion resulting in dyspnea
chronic cough
orthopnea
clinical manifestations of RV failure
congestion of liver (nutmeg) and spleen
edema ("pitting") of subcutaneous tissue
atrio septal defects are most common in
adults
ventricular septal defects are most common in
kids and may close later in life
tetralogy of fallot
vsd
pulm. art. stenosis
aorta overrides vsd
rv hypertrophy
sublingual nitroglycerin is used to treat
angina pectoris and it dilates peripheral vasculature
tests for acute MI
ECG
elevated serum proteins (troponins T and I)
enzymes like creatine kinase (CK-MB)
true or false: in myocarditis the inflammation is the CAUSE of the disease
true