A nurse is preparing to administer ibuprofen solution 60 mg orally to a 7-month-old infant who is febrile. Available is ibuprofen 50 mg/1.25 mL. How many should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A. The client should use a hair dryer on a warm setting to relieve itching inside the cast is incorrect. Using a hair dryer could cause skin burns or damage the cast. Additionally, the client should avoid introducing moisture into the cast, which could lead to skin irritation or infection.

B. The client's extremity should be elevated after the cast is applied is correct. Elevating the extremity helps reduce swelling and inflammation during the initial phase after cast application. It is important to elevate the limb above the level of the heart to promote venous return and reduce swelling.

C. The client can shower with the cast after 24 hr is incorrect. The plaster cast should not get wet. The nurse should instruct the client to keep the cast dry at all times. A plastic cover or cast protector should be used when showering to prevent moisture from seeping into the cast.

D. The client should keep the cast covered until it is dry is incorrect. It is true that the cast should be kept dry, but keeping it covered is not enough. The primary concern is preventing moisture and ensuring the plaster cast is allowed to air dry in a well-ventilated area without getting wet.

A. Expressing conflict over independence and control is incorrect. This behavior is more characteristic of adolescents, who struggle with autonomy as they develop their identity. Nine-year-old children are still largely influenced by parents and rules.

B. Demonstrating self-centered thinking is incorrect. Egocentric thinking is typical in preschool-aged children, while school-aged children develop the ability to see other perspectives and think more logically.

C. Displaying emotional detachment from parents is incorrect. While school-aged children begin to form peer relationships, they typically maintain strong emotional connections with their parents rather than detaching from them.

D. Grasping the concept of cause-and-effect is correct. At this stage, children develop logical thinking and an understanding of consequences, allowing them to recognize how actions lead to specific outcomes.