Davies- Ischemic Heart Disease & Misc Disorders

  1. T/F:  Echo is not useful for the detection of coronary artery disease?

    role for echo continues to increase in CAD, specially with the expanded role of stress echo
  2. The electrical aberration that would produce a sawtooth pattern in an M-mode scan of the mitral valve

    LBBB (left bundle branch block)
    RBBB (right bundle branch block)
    Wolff-Parkinson White syndrome
    atrial fibrillation
    atrial fibrillation

    in A fib, each P wase generates an atrial contractions resulting in a constant reopening of the mitral valve that gives a sawtooth appearance
  3. T/F:  Early systolic "beaking" of the IVs is noted on M-mode with:

    electrical pacing
    Type B Wolff-Parkinson-White

    RBBB does not have the same effect on the LV conduction as LBBB or Wolff-Parkinson. If electrical pacing is done in the RV apex, beaking can bee seen.
  4. Atherosclerosis is a disease that begins in the

    transverse fibers
    inner media
    outer media
  5. T/F:  Which of the following are true regarding atherosclerosis

    is a specific disease
    usually develops at bifurcation
    is a segmental disease
    is a generalized disease
    intimal damage/repair may begin in adolescence

    atherosclerois is a generalized disease that begins most often at bifurcations b/c of the shear forces generated at the wall surfaces. Px with atherosclerosis in the periphery will have other atherosclerotic changes in the carotid & coronary vesssels even though these may be clinically silent. Of all of the theories of its development, the injury/repair cycle seems to best account for the prevalence of coronary ather disease found on postmortem exam of young mell killed in Vietnam, Regardless of its etiology there is no quesiton that disruption of intimal continuity is the principal manisfestation
  6. In pathogenesis of thromboembolism, which of the following is likely to occure first?

    loss of intimal continuity
    aggreagation of platelets and fibrin
    fibrinoplatelet embolic shower
    development of fibrosis
    plaque hemorrhage
    loss of intimal conitnuity
  7. Which of the following is NOT considered a risk factor for atherosclerosis?

    being female
    diabetes mellitus
    lipoprotein abnormalities
    tobacco use
    being female

    being a female is not considered a risk factor although postmenopausal females are at greater risk for atherosclerosis than premenopausal females
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Davies- Ischemic Heart Disease & Misc Disorders