Asked by cindy
For a nonsmoker, the biological half-life of theophylline is 8 hours. Find the amount of the drug retained in a nonsmoker's system 18 hours after taking a one-unit dose. (Round your answer to three decimal places.)
Answers
Answered by
Damon
18 / 8 = 2.25 half lives
1 unit *(1/2)^2.25 = .210 unit left
1 unit *(1/2)^2.25 = .210 unit left
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