Digitalis toxicity

Precipitated by:

  1. Hypokalemia
  2. Hypomagnesemia
  3. Renal insufficiency
  4. Advanced age
  5. Myxoedema
  6. Hypoxia
  7. Acute MI
  8. Hypercalcemia
  9. Thyrotoxicosis
  10. Quinidine and calcium channel blockers
  11. Furosemide,thiazide,amphotericin B cause hypokalemia

Note that all the factors precipitating digitalis toxicity are hypo states except hypercalcemia and thyrotoxicosis.

Digitalis toxicity causes hyperkalemia.

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