Patho/pharm II- Exam 3- Heart failure (6 points)

  1. Define arrythmia. 
    Disorder of the rate and rythm of the heart caused by a disturbance in the conduction system. 
  2. Define heart failure. 
    results from the hearts inability to increase the CO sufficiently to  meet the body's metabolic need. 
  3. Define ejection fraction and what is a normal value? 
    • Ability of the heart to function as a pump. 
    • the ratio of the volume of blood the heart empties during systole to the volume of blood in the heart at the end of diastole expressed as a percentage usually between 50 and 80 percent
  4. What are the 4 categories of causes of HF?
    • 1. Alterations in contractility
    • 2. Alterations in preload
    • 3. Alterations in aferload
    • 4. Alterations in the ratio of oxygen supply to oxygen demand

    • Elevated systemic & pulmonary vascular resistance Myocardial infarction
    • Infection
    • Anemia
    • Beriberi
    • Cardiomyopathy
    • CAD
    • Valvular Heart Disease
    • Restrictive Pericarditis
    • Persistent tachyarrhythmias/Bradyarrhythmias
    • Loss of atrial kick
    • HTN
    • Hyperthyroidism
    • Collagen Vascular diseases: SLE, etc
    • Infiltrative diseases: tumors, sarcoidosis
    • Iatrogenic factors- drugs
Card Set
Patho/pharm II- Exam 3- Heart failure (6 points)
Patho/pharm II- Exam 3- Heart failure (6 points)