NURS 2010 CAD STUDY SET WITH 100%
CORRECT ANSWERS!!
What is CAD (coronary artery disease)?
Narrowing of the coronary arteries limits blood supply to the heart muscle causing
angina
-is a deposit of fatty tissue that hardens over time
development of CAD
1. fatty streaks on the vessel wall
2. raised fibrous plaque that starts to constrict blood flow
3. complicated lesions that create RBC traffic jams
Plaque rupture
when the covering of the plaque opens exposing the underlying plaque
can be due to a change in biochemistry or blood flow
Thrombosis
The plaque ruptures and the lipid core begins to hemorrhage. platelets collect and a
thrombus forms
occlusion of the artery
Obstruction or narrowing of an artery leading to reduced blood flow
CAD risk factors
, age
gender
race
genetics
elevated serum lipids
obesity
inactivity
HTN
Smoking
Stress
Diabetes
High sat. fat diet
HDL- good or bad?
GOOD
LDL- good or bad?
bad
Triglycerides- good or bad
Very bad
comes from most carbohydrates
Lipid levels after 12 hrs. fast
Total: <200 mg/dL
LDL:<100mg/dL
HDL: >39
CORRECT ANSWERS!!
What is CAD (coronary artery disease)?
Narrowing of the coronary arteries limits blood supply to the heart muscle causing
angina
-is a deposit of fatty tissue that hardens over time
development of CAD
1. fatty streaks on the vessel wall
2. raised fibrous plaque that starts to constrict blood flow
3. complicated lesions that create RBC traffic jams
Plaque rupture
when the covering of the plaque opens exposing the underlying plaque
can be due to a change in biochemistry or blood flow
Thrombosis
The plaque ruptures and the lipid core begins to hemorrhage. platelets collect and a
thrombus forms
occlusion of the artery
Obstruction or narrowing of an artery leading to reduced blood flow
CAD risk factors
, age
gender
race
genetics
elevated serum lipids
obesity
inactivity
HTN
Smoking
Stress
Diabetes
High sat. fat diet
HDL- good or bad?
GOOD
LDL- good or bad?
bad
Triglycerides- good or bad
Very bad
comes from most carbohydrates
Lipid levels after 12 hrs. fast
Total: <200 mg/dL
LDL:<100mg/dL
HDL: >39
