Pharm 4-Dysrhythmias

  1. What is a prodysrhythmic?
    Anything that causes aberrant conditions in the heart (disease, drug, etc)
  2. Primary mechanism as to how antidysrythmics work.
    • prolonging refractory period
    • (increase/decrease impulse, conduction, or both)
    • -slide 8
  3. What is the problem with putting someone on long-term antidysrhythmias?
    They can CAUSE dysrhythmias!
  4. What is cardioversion?
    synchronized shock (so that normal conduction system will take over)
  5. Pt teaching for Procainamide.
    • (Sodium channel blocker)
    • -monitor HR, dizziness
    • -wt gain
    • -do not combine with other meds/supplements
    • -medic alert ID
  6. What should you assess prior to administering procainamide (sodium channel blocker)?
    APICAL pulse
  7. Why is lidocaine not usually given as a Na+ channel blocker anymore?
    • Very NARROW therapeutic index-
    • can be toxic (CNS depression, anxiety, tremors, seizures, coma)
  8. BB are primarily used for _______.
    • atrial dysrhythmias with HF
    • -usually POST MI
  9. What is propranolol (Inderal) used for?
    long-term therapy for dysrhythmias
  10. When are BB contraindicated?
    • bradycardia
    • sick sinus syndrome
    • AV block
    • (would slow heart even more!)
  11. How should BB be administered?
    SLOWLY!!! (will see drop in HR)
  12. What should you check prior to administering BB?
    APICAL pulse & VS
  13. Pt teaching for BB.
    • Take pulse prior to admin
    • depresses/masks hypoglycemia with DM
    • caution with ADLs
    • Do NOT stop abruptly
  14. Amiodarone (Cordarone, Pacerone) blocks _____ channels and inhibits _______.
    • K+ AND Na+
    • sympathetic
  15. Drug of choice for ventricular dysrhythmia in ACLS.
  16. Why is amiodearone (Cordarone) no longer used for long-term therapy?
    causes pulmonary problems (pulmonary fibrosis)
  17. _______ can elevate the affect of Amiodarone and cause significant bradycardia.
    grapefruit juice
  18. Pts taking _______ should use caution with loop diuretics b/c it can cause significant bradycardia. Why?
    • amiodarone
    • they lose K+
  19. AE of amiodarone.
  20. Pt teaching with amiodarone.
    • NO grapefruit juice
    • can worsen glaucoma
    • wear protective clothing, sunglasses, etc (photosensitivity)
  21. Contraindications to amiodarone.
    • iodine allergies (amiodarone contains iodine)
    • HF
    • COPD
  22. What to monitor for with CCB.
    • bradycardia
    • hypotension
  23. Which antidysrhythmic is given FAST?
    adenosine (Adenocard)
  24. What isĀ adenosine (Adenocard) used for?
    • atrial tachycardia
    • -invokes a period of asystole!
  25. What is dogoxin used for?
    primarily for HF
  26. _______ should be avoided in clients suffering from severe HF, as this drug can worsen the condition
  27. Which drugs can be used for both atrial and ventricular tachycardia dysrhythmias?
    Procainamide & Amiodarone
  28. Early signs of ________ toxicity include CNS effects such as paresthesias, drowsiness, confusion, anxiety, or tremors.
  29. Common side effects related to _________ include nausea, abdominal pain, and headache.
  30. serious problem with ______ is the onset of a pneumonia-like syndrome.
    amiodarone (Cordarone)
Card Set
Pharm 4-Dysrhythmias
Pharm 4