NCLEX-PN Practice Q 46
A camp nurse is applying sunscreen to a group of children enrolled in swim classes. Chemical sunscreens are most effective when applied:
A. Just before sun exposure
B. 5 minutes before sun exposure
C. 15 minutes before sun exposure
D. 30 minutes before sun exposure
Correct Answer: D. 30 minutes before sun exposure
Option D: Sunscreens of at least an SPF of 15 should be applied 20–30 minutes before going into the sun to allow the product to bind into the skin.
Options A, B, and C: These do not allow sufficient time for sun protection.