Perfusion III Flashcards
Cardiac Tamponade
- Result of inflammation (Myocardial Infarction MI)
2. Can also happen after surgery
1 Cause of Right Sided Heart Failure?
- The number one cause of Right sided heart failure is Left sided heart failure
Pulsus Electrical Activity PEA
- Mechanical (Muscle) doesn’t work
- Electrical system works
Treat PEA with Epinephrine & Atropine
Diseases of the Veins
-Varicose Veins
- A vein in which blood has pooled
- Distended, tortuous, and palpable veins
- Caused by trauma or gradual venous distention
- Can cause poor venous return
Diseases of the Veins
-Chronic Venous Insufficiency
- Inadequate venous return over a long period due to varicose veins or valvular incompetence
- Venous stasis ulcers
Diseases of the Veins
-Deep Vein Thrombosis (DVT’s)
- Obstruction of venous flow leading to increased venous pressure
Diseases of the Veins
-DVT – Virchow Triad
- Venous stasis
- Venous Endothelial Damage
- Hyper-coagulable states
D-Dimer Test
- Elevated when a patient has DVT’s
- dimers increase with inflammation
Worst Complication of DVT
- Pulmonary Emboli
- Life Threatening
Primary Hypertension
- Essential or idiopathic hypertension
- Genetic & environmental factors
- Affects 92-95% of individuals w/ hypertension
Complicated Hypertension
- Chronic hypertensive damage to the walls of systemic blood vessels
- Smooth muscle cells undergo hypertrophy and hyperplasia w/ fibrosis of the tunica intima & media
- HTN causes mechanical damage
Malignant HTN
- Rapidly progressive hypertension
2. Diastolic pressure is often >140 mm Hg
Diseases of the Arteries & Veins
-Aneurysm
- Local dilation or out pouching of a vessel wall or cardiac chamber
Diseases of the Arteries & Veins
-True Aneurysm
- Fusiform Aneurysm
2. Circumferential aneurysm
Diseases of the Arteries & Veins
-False Aneurysm
- Saccular aneurysm
Diseases of the Arteries & Veins
-Classic s/s of dissecting aneurysm
- Sudden back pain and restless in bed
- Feeling of impending doom
- Discoloration of skin and mottling of skin under aneurysm
1st Step of Endothelial cell Injury
- Mechanical Injury - HTN
2. Chemical Injury - Smoking/Alcohol
Atherosclerosis
-Progression
- Inflammation of Endothelium
- Cellular proliferation
- Macrophage migration
- LDL oxidation (foam cell formation)
- Fatty Streak
- Fibrous Plaque
- Complicated plaque
Coronary Artery Disease
- Any vascular disorder than narrows or occludes the coronary arteries
- Atherosclerosis is the most common cause of CAD
Most Common Cause of CAD?
- Atherosclerosis
Collateral Circulation
- Response to CAD over time
2. New blood vessels created around the Coronary Arteries
CAD
-Risk Factors
- Dyslipidemia
- HTN
- Smoking
- DM
- Obesity/Sedentary Lifestyle
Unstable Angina
-Characteristics
- Angina that does not go away with rest or Nitroglycerin
Prinzmetal Angina (Varient)
- Angina due to spasm of the coronary arteries rather than from exertion or other increased demands on the heart
- Pain typically occurs at rest.