A Certain Drug Is Eliminated from the Bloodstream Exponentially with a Half-Life

question 43

Multiple Choice

A certain drug is eliminated from the bloodstream exponentially with a half-life of 60 hours. Suppose that a patient receives an initial dose of 10 milligrams of the drug at midnight. Estimate
When the drug concentration will reach 20% of its initial level.

• A)139 hours
• B)199 hours
• C)79 hours
• D)23 hours

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