02.12 Myocardial Infarction- Inferior Wall

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Inferior MI (Cheat Sheet)

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Outline

Nursing Points

General

  1. Inferior Wall MI (Myocardial Infarction)
    1. Supplied by R coronary artery
    2. Complications
      1. Sinus node
        1. Heart rate bradycardia
        2. Lightheaded, ringing in ears -> lie flat with legs up -> brings blood to atria (releases natriuretic hormone and increases HR)
      2. AV node
        1. Atria-ventricle ‘disconnection’
        2. Complete heart block
        3. 3rd degree heart block (multiple p waves for each QRS complex)
        4. Tx-> pacemaker
      3. Right atrium and Right ventricle -> Right ventricle infarction
      4. Mitral valve -> insufficiency
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