A client is taking antacids with an antibiotic. The nurse's instructions are based on the fact that antacids such as aluminum hydroxide (Amphojel) can:
a. increase drug absorption.
b. slow drug metabolism.
c. increase drug metabolism.
d. slow or block drug absorption.
ANS: D
Antacids impair medication absorption by changing the pH and surface area of the gastric lining. Many drugs are formulated to be absorbed in an acidic environment, and antacids make the environment more alkaline.
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