Assistant Laboratory Animal Technician (ALAT) Practice Exam

A drug in lotion form is most likely administered by which route?

1. Oral

2. Topical

3. Intravenous

4. Intramuscular

The correct answer is: Topical

The administration of a drug in lotion form is most appropriately categorized as topical. This route involves applying the drug directly onto the skin or mucous membranes where it can absorb locally, treating conditions or delivering medication directly to the target area. Lotions are designed to be spread over the skin's surface, allowing for effective drug absorption into the epidermis and potentially into the deeper layers of the skin. This method is often preferred for localized treatment of skin conditions, such as dermatitis or psoriasis, as it minimizes systemic absorption and reduces the risk of side effects associated with other routes of administration. In contrast, the oral route involves taking medication by mouth, intravenous administration requires injections directly into the bloodstream, and intramuscular injections involve delivering medication deep into muscle tissue. Each of these routes serves different purposes and uses formulations that are distinct from topical lotions.