Sydney ran ten miles. Afterward, her knees were very sore. She took ibuprofen, an oral pain reliever, and she also rubbed a topical ointment on the area. Which best describes how Sydney treated her sore knees?
Answer
A
The ibuprofen had both local and systemic effects.
B
The ointment had both local and systemic effects.
C
The ibuprofen had a local effect, and the ointment was systemic.
D
The ointment had a local effect, and the ibuprofen was systemic.
Explanation
A topical ointment rubbed directly on Sydney’s knees mainly has a local effect at the application site. Ibuprofen taken by mouth enters the bloodstream and can affect the body more broadly, so it has a systemic effect. Therefore, the ointment was local and the ibuprofen was systemic.
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