Patho lecture 5

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  1. BloodVessels Obstructions are
    • Thrombosis
    • Embolus
    • Vasospasm
    • Inflammation
    • Mechanical Compression
  2. Thrombosis
    Stationary blood clot formed with a vessel or a chamber of the heart
  3. Inflammation may stiumualte
    Thrombus formation
  4. Thrombus in inflamed vein
    is thrombophlebitis
  5. Arterial thrombi can result in
  6. Embolus
    Not stationary

    Collection of material that forms a clot within a blood vessel
  7. What is the most common type of Embolus??

    A traveling clot which will cause new site of vessel obstructio
  8. Other causes of emboli
    Air, fat, amniotic fluid, bacterial mass
  9. Vasospasm
    Sudden constriction of arterial smooth muscle that results in obstructed blood flow
  10. Inflammation
    Vasculitis, phlebitis, arteritis (autoimmune inflammation)(can cause vessel to occlude)
  11. Mechanical Compression
    Trauma, tight casts or dressings, compartment syndrome, edema, etc.
  12. Blood Vessels with Structural Alterations
    • Valvular Incompetence
    • Arteriosclerosis and Atherosclerosis
    • Aneurysms
    • Arteriovenous Fistulas
  13. Valvular Incompetence can happen in
    • Superficial veins
    • Deep veins
  14. Valvular Incompetence In superficial veins, results in
    Varicose Veins
  15. Valvular Incompetence in deep veins, results in
    chronic venous insufficiency
  16. Atherosclerosis is a specific type of
    arteriosclerosis affecting medium- and large-size arteries
  17. What happens whenAtherosclerosis narrows the lumina of the arteries ??
    reducing blood flow to tissues and end-organs
  18. Aneurysms
    Localized dilation of an arterial wall (a weakened area in the artery)
  19. Arteriovenous Fistulas
    Abnormal communications between arteries and veins, no capillary bed
  20. First sign of Arteriovenous Fistulas is
    A severe headache
  21. What malformation is the Most common and most serious type in Arteriovenous Fistulas??
    Arteriovenous malformation
  22. Obstructed lymph flow causes
  23. Formation of atherosclerotic plaques seems to begin with
    damage to the endothelial surface of the vessel
  24. Atherosclerosis is the underlying pathologic condition for much of
    hypertension, renal disease, cardiac disease, peripheral artery disease, and stroke
  25. What is the biggest complaint from people with Atherosclerosis ??
    Intermitten Claudification
  26. Thromboangitis Obliterans
    A rare inflammatory condition affecting small- and medium-sized arteries and veins of the upper and lower extremities
  27. Raynaud Syndrome
    An extreme vasoconstriction producing cessation of blood flow to fingers and toes
  28. Aneurysms
    Localized arterial dilations, with risk of rupture
  29. What are the underlying causes for Aneurysms??
    may be atherosclerosis or weakness of vessel wall, caused by infection, inflammation, or injury
  30. Acute Arterial Occlusion
    Emergency situation, possibly caused by thrombus or embolism or external mechanical compression

    Produces such a profound ischemia that the limb may become gangrenous and sepsis may result
  31. Acute arterial obstruction is accompanied by the classic manifestations known as the six P’s which are??
    pallor, paresthesia, paralysis, pain, pulselessness, and polar (cold to touch)
Card Set:
Patho lecture 5
2012-04-29 21:34:05

Exam 2
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