EMT-B

Card Set Information

Author:
ericlance
ID:
47
Filename:
EMT-B
Updated:
2009-09-29 22:35:05
Tags:
Chapter 12
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Description:
Anatomy and Physiology of the Heart
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  1. Which side of the heart carries deoxygenated blood?
    The right side
  2. Which side of the heart carries oxygenated blood?
    The left
  3. What is the only artery that carries deoxygenated blood?
    The Pulmonary Artery
  4. What takes blood away from heart?
    Arteries
  5. What brings blood back to heart
    Veins
  6. Which atrium do the inferior and superior vena cava's meet in?
    The right atrium
  7. What is the strongest chamber in the heart?
    Left Ventricle
  8. What is automaticity?
    The hearts ability to create own electrical impulses
  9. What is the SA NODE?
    • Sinoatrial Node
    • Pace maker of the heart
    • 60-100 BPM at resting
  10. What is the AV NODE?
    • Atreuiventriculer Node
    • Delays electrical impulses
    • 40-60 BPM at resting
  11. What is Bundle of His?
    Divides into left and right bundle branch then to purkinje fibers
  12. What do the coronary arteries do?
    Supply blood flow to the heart muscle
  13. What does the Right Coronary Artery do?
    Supplies blood flow to the right side
  14. What does the Left Coronary Artery do?
    Splits to the LAD and the LCA
  15. In which phase do the coronary arteries fill up?
    Diastolic Phase
  16. What is the function of the red blood cell?
    • Supplies oxygen
    • Erythrocyte
  17. What is the function of the white blood cell?
    • Fights infection
    • Leukocyte
  18. What are platelets
    Clots
  19. What is plasma?
    • Fluid that your blood is in
    • majority of your blood is plasma
  20. What is atherosclerosis?
    • Materials build up inside vessels
    • this decreases or obstructs blood flow
  21. What is Angina Pectoris?
    • Chest pain
    • Pain in the chest that occurs when the heart does not recieve enough oxygen
    • Typicalls crushing or squeezing pain
    • Rarely last longer than 15 minutes
    • Can be difficult to differentiate from heart attack
  22. What is a heart attack?
    • Acute myocardial infarction
    • Pain signals death of cells
    • Opening the coronary artery within the first hour can prevent damage
    • Immediate transport is essential
  23. What are some signs and symptoms of heart attack?
    • Weakness, nausea, sweating without obvious cause
    • Chest paint/discomfort
    • pain in lower jaw, arms, back, abdomen, or neck
    • Sudden arrhythmia with syncope
    • Shortness of breath of dyspnea
    • Pulmonary Dema
    • Sudden Death
  24. What percent of AMI patiends do not reach hospital?
    40%
  25. What is Arrythmia/Dysrythmias
    • Abnormal heart beat
    • Bradycardia
    • Ventricular Tachycardia "VT"
    • VT still has pulse
    • Pulseless VT does not
  26. What is congestive heart fauilure?
    • Occurs when ventricles are damaged
    • Heart tries to compensate
    • Increased heart rate
    • Enlarged left bentricle
    • Fluid backs up into lungs or body as heart fails to pump
  27. What is the reason for asprin?
    • Prevents clots from becoming bigger
    • normal dosage is 162-324mg
    • Baby asprin is 81mg
  28. What are the forms of nitroglycerin?
    • Pill
    • Spray
    • Skin patch
  29. What are the effects of Nitroglycerin?
    • Relaxes blood vessel walls
    • Dilates coronary arteries
    • Reduces workload of heart
  30. What are some contraindications with nitro?
    • Systolic BP below 100mmHg
    • Head injury
  31. Nitroglycerin Potency
    • Loses strength overtime
    • Specially if exposed to light
  32. What happens when nitroglyverin tablets lose potency?
    • The patient may not feel the fizzing sensation
    • May not experience the burning sensation and headache

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