A patient with a long-standing dermatological health problem has been advised to use a drug with a local effect. The nurse should recognize what characteristic of this drug?
A) It affects only the organ system in which it is metabolized.
B) The drug requires application at multiple sites.
C) It is effective only as long as it is in contact with skin.
D) The drug acts primarily at the site where it is applied.
D
Feedback:
Drugs with local effects, such as sunscreen lotions and local anesthetics, act mainly at the site of application. Those with systemic effects are taken into the body, circulated through the bloodstream to their sites of action in various body tissues, and eventually eliminated from the body. A drug with local effect does not necessarily have to be applied at multiple sites, and its action may affect tissues long after contact.
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