This therapeutic session covered the practical approach to dosing phenytoin and digoxin and dealing with digoxin toxicity. I learned the criteria for using digibind in acute versus chronic digoxin toxicity (acute: >10mg, Sr K >5mmol/L, life threatening arrythmia/ chronic: >12.8nmol/L, Life threatening arrythmia). I also learned how to load a patient with phenytoin by both IV and PO routes and when to draw levels (IV at 4 hrs to see if in target, Maintenance at 4 weeks to see if at Css).
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