Pharmacokinetics
A child accidentally takes his grandmother’s digoxin. At the emergency room a blood sample reveals a serum concentration of 6 µg/L. The serum concentration should be ideally <1.2 µg/L to avoid toxicity. How long will it take for blood levels to become safe? Assume that the plasma concentration is influenced only by first-order elimination and that digoxin’s elimination t1/2 is 2 days.
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