A nurse is reviewing the laboratory report of a newly admitted school-age child who has a fever. The nurse should identify which of the following laboratory results is an indication of an infection and should be reported to the charge nurse immediately.

Choice A rationale:
Urticaria, commonly known as hives, is a skin rash characterized by raised, red, and itchy welts that can vary in size and shape. It is a classic manifestation of an allergic reaction. Allergic reactions can occur in response to medications like clindamycin. Urticaria is a result of histamine release and can range from mild to severe, with itching being a prominent symptom. The appearance of urticaria in a child taking clindamycin suggests a potential allergic reaction to the medication.
Choice B rationale:
Conjunctivitis, or pink eye, is inflammation of the conjunctiva, the clear membrane that covers the white part of the eye and lines the inner surface of the eyelids. While conjunctivitis can be associated with allergies, it is not a typical sign of an allergic reaction to clindamycin. Conjunctivitis is more commonly associated with eye irritation, redness, and discharge.
Choice C rationale:
A temperature of 38°C (100.4°F) alone is not a definitive sign of an allergic reaction to medication. Fever can be caused by a variety of factors, including infections, inflammatory processes, and other non-allergic reactions. While fever can be a symptom of an allergic reaction in some cases, it is not as specific as urticaria in indicating an allergic response.
Choice D rationale:
Cool extremities are not a classic sign of an allergic reaction to medication. Allergic reactions typically involve skin manifestations like hives, itching, and redness. Cool extremities might suggest poor peripheral circulation or decreased blood flow to the extremities, but they are not directly indicative of an allergic reaction to clindamycin.

Choice A rationale:
The nurse should report the finding of a 6-month-old infant with a spiral fracture to a lower extremity to local authorities. Spiral fractures in infants, especially those who are not yet independently mobile, raise concerns about possible child abuse or non-accidental trauma. The unique pattern of spiral fractures is often associated with twisting forces, which are unlikely to occur accidentally in infants who cannot perform such movements. Reporting such cases is essential to ensure the safety and well-being of the child.
Choice B rationale:
A 9-month-old infant exposed to bedbugs and cellulitis is not an emergency that requires reporting to local authorities. While cellulitis can be serious, it is not an immediate threat to the child's safety, and the focus should be on providing appropriate medical care.
Choice C rationale:
A 4-year-old preschooler with rivalry among siblings does not indicate a need for reporting to local authorities. Sibling rivalry is a common occurrence in families and does not pose a threat to the child's safety. It is a social and developmental issue that can be addressed within the family.
Choice D rationale:
A 24-month-old toddler experiencing occasional incontinence does not require reporting to local authorities. Occasional incontinence can be a normal part of toddler development as they learn to control their bladder. It does not indicate abuse or immediate danger to the child.