A school nurse is assessing a student who was kicked in the shin during a soccer game. The area of the injury has become swollen and discolored. The triage nurse recognizes that the patient has likely sustained what?

Correct Answer: C

Rationale: A contusion is a soft-tissue injury that results in bleeding into soft tissues, creating a hematoma and ecchymosis. A sprain is an injury to ligaments caused by wrenching or twisting. A strain is a muscle pull from overuse, overstretching, or excessive stress. A dislocation is a condition in which the articular surfaces of the bones forming a joint are no longer in anatomic contact. Because the injury is not at the site of a joint, the patient has not experienced a sprain, strain, or dislocation.

Correct Answer: D

Rationale: Potassium hydroxide is used to prepare skin scrapings for microscopic examination of fungal infections.

Correct Answer: D

Rationale: Hydrofluoric acid is a highly corrosive chemical known to cause severe burns; lime and bleach can irritate but are less likely, and gasoline typically causes thermal burns if ignited.

Correct Answer: A

Rationale: Basal cell carcinoma typically appears as a translucent or pearly papule, often with visible blood vessels.

Correct Answer: B

Rationale: The dermis contains sensory receptors like mechanoreceptors and thermoreceptors.