A nurse is reinforcing teaching about controlling allergens with the parent of a child who has a new diagnosis of asthma. Which of the following instructions should the nurse include?

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:
Placing a toddler in a side-lying position on the affected side after administering otic medication is not recommended. This position can cause the medication to leak out, reducing its effectiveness, and can also increase the risk of infection. It's important to keep the medication in the ear canal for an adequate amount of time to allow it to work properly.
Choice B rationale:
Allowing the medication to reach room temperature prior to administration is not a critical step for otic medications. While warming certain medications can reduce discomfort, this is not a specific requirement for ear drops. Ensuring the cleanliness of the ear, proper positioning, and correct administration technique are more important.
Choice C rationale:
The correct choice. Sitting the child in an upright position is the recommended approach for administering otic medication. This position helps ensure that the medication remains in the ear canal and is not immediately expelled. It also facilitates better penetration of the medication into the ear canal, increasing its effectiveness.
Choice D rationale:
Gently pulling a child's ear upward is a technique used for administering otic medications to straighten the ear canal and allow better access to the medication. However, this step alone is not sufficient. Proper positioning of the child is equally important to prevent the medication from leaking out.