Correct Answer: B

Rationale: Administering antibiotics for 7 days is essential postoperatively to prevent infections and complications in a child who underwent perforated appendicitis repair. This helps in reducing the risk of secondary infections and promoting healing. Clear liquid diets, warm compresses, and prolonged fasting are not the primary interventions indicated in this scenario.

Correct Answer: B

Rationale: After hypospadias repair, it is essential to avoid giving the infant a tub bath for 1 week to prevent infection and promote proper healing. Submerging the surgical site in water too soon can increase the risk of infection and compromise the healing process.

Correct Answer: A

Rationale: Models of practice help therapists engage in sound therapeutic reasoning by providing a structured framework to guide their thinking process. These models offer a systematic approach that assists therapists in organizing their thoughts and decision-making processes during therapy sessions. By following a specific model, therapists can ensure they consider all relevant factors and make informed therapeutic choices, leading to effective interventions and better outcomes for their clients.

Correct Answer: A

Rationale: The nurse should assess the toddler with a concussion and an episode of forceful vomiting first when receiving change-of-shift report for children. Forceful vomiting in a toddler with a concussion indicates increased intracranial pressure, requiring immediate assessment and intervention to prevent further complications.

Correct Answer: B

Rationale: Angiotensin II is the most potent compound in the renin-angiotensin-aldosterone system for raising blood pressure. It acts as a powerful vasoconstrictor, leading to increased systemic vascular resistance. Angiotensin II is formed from angiotensin I through the action of the angiotensin-converting enzyme. While renin initiates the cascade by converting angiotensinogen to angiotensin I, it is angiotensin II that exerts the strongest pressor effect.