NURS 3100 Exam 1 Practice 2025 - Free NURS 3100 Practice Questions and Study Guide

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Which substance has the lowest rate of crossing renal tubular membranes and would be excreted in urine?

Ionized drugs

Ionized drugs have the lowest rate of crossing renal tubular membranes and would be excreted in urine. This is because ionized drugs have a charge which makes it more difficult for them to pass through the lipid-rich membranes of the renal tubules. On the other hand, lipid-soluble drugs, non-ionized drugs, and volatile drugs can more easily cross membranes and are more likely to be reabsorbed rather than excreted in urine.

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Lipid-soluble drugs

Non-ionized drugs

Volatile drugs

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