The nurse is reviewing the role of diffusion in the distribution of medications with a nursing student. The nurse understands that drugs that can be distributed by simple diffusion include those with which of the below characteristics? Note: Credit will be given only if all correct choices and no incorrect choices are selected. Select all that apply.

Question

Quizplus · Accepted Answer

Drugs that can be distributed by simple diffusion are those with low molecular weight, lipophilicity, and non-ionization. Alcohol (D) and urea (E) fit these criteria and can therefore be distributed by simple diffusion. Large molecules (A), ionized drugs (B), and water-soluble agents (C) are unable to cross biological membranes via simple diffusion.

The Nurse Is Reviewing the Role of Diffusion in the Distribution