Ch 18 Disorders Of Blood Flow/Pressure

Question 0

Know the difference between Stable and Unstable plague

Answer 0

Stable: more thick fibrous cap less lipid pool doesn’t break off easily

Unstable : less fibrous cap more lipid easily breaks off

Question 1

How does atherosclerosis plaque develop

Answer 1

A condition which lumen of arteries fill with fatty deposits called plaque. The plaque is composed of cholesterol a fatty lipid substance

The plague develops monocytes attaches to endothelium macrophages release free radicals oxidized LDL Macrophage

Question 2

Clinical manifestation and implications of peripheral disease

Answer 2

Hypoxia to the outer limbs cyanosis= poor perfusion

Necrosis of tissues cells 
Caused by plague buildup in peripheral muscles 
Decreased blood flow pain to limbs
Edema- cramping pain 
Hair loss shine to skin

Question 3

Major implications of coronary Artery disease

Answer 3

Refers to arteriosclerosis of the coronary arteries = poor blood flow to the arteries that supply the heart muscles

Ischemia may cause angina heart attack cardiac arrhythmia heart failure sudden death v-fib

Thrombosis of left circumflex branch are worse LAD

Question 4

Cardiac tamponade why is potentially life threatening

Answer 4

The compression of the heart muscles due to pericardial fluid accumulating and compressing the heart. The pericardial fluid occupies the space needed to accommodate for filling ventricles and atria with blood

Pericarditis endocarditis myocarditis chest trauma or myocardial infarction