A one-month-old patient, who has developmental dysplasia of the hip, is placed in a hip spica cast. The patient's mother expresses the desire to continue breastfeeding. What is the pediatric nurse's best response?

Correct Answer: C

Rationale: Breastfeeding can continue even with a hip spica cast, but proper positioning is essential to ensure comfort for both the infant and the mother.

Correct Answer: D

Rationale: Retinoblastoma predominantly occurs in children under 5 years of age, making it the least likely to occur in adults.

Correct Answer: B

Rationale: IgE is the immunoglobulin specific to an allergic response. When an individual is exposed to an allergen, the immune system produces IgE antibodies that bind to mast cells and basophils. Upon re-exposure to the same allergen, these IgE antibodies trigger the release of histamine and other chemicals that cause allergic symptoms such as itching, swelling, and inflammation. IgE is not normally found in high concentrations in the bloodstream unless there is an allergic reaction occurring. Other immunoglobulins like IgA, IgG, and IgM are not specifically associated with allergic responses.

Correct Answer: C

Rationale: These milestones are typically achieved around 24 months.

Correct Answer: C

Rationale: Zidovudine (AZT) is an antiretroviral drug used to treat HIV infection, including in AIDS patients. It is important to follow the prescribed dosing schedule to maintain consistent drug levels in the body and effectively control the HIV virus. Taking zidovudine every 4 hours around the clock helps ensure the medication's therapeutic effects are maintained throughout the day. It is crucial for the client to adhere to the prescribed dosing regimen to prevent the development of drug resistance and to achieve the best treatment outcomes. Taking zidovudine with meals, on an empty stomach, or taking over-the-counter drugs for minor adverse reactions are not the correct instructions related to the dosing schedule of zidovudine.