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A drug given straight into a vein is bioavailable at:

A100 percent
B10 percent
C1 percent
D50 percent
Answer & Solution
Correct answer: A. 100 percent
1. Nothing stands between the drug and the blood. 2. There are no barriers to absorption. 3. So it is 100 percent bioavailable. _Source: OpenStax Pharmacology for Nurses, Chapter 2, Drug Administration and Pharmacokinetics._
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