Correct Answer: C

Rationale: Pelvic ultrasonography is commonly used to assess various conditions. Choices A, B, and D are all valid reasons for performing pelvic ultrasonography. Measuring uterine size helps evaluate conditions like fibroids, while detecting multiple pregnancies is essential for prenatal care. Furthermore, identifying foreign bodies can aid in diagnosing certain conditions. However, assessing renal size is typically not a primary reason for pelvic ultrasonography, making choice C the correct answer.

Correct Answer: A

Rationale: The hypothalamus is responsible for regulating sleep patterns among other functions. Injury to the hypothalamus can disrupt the sleep-wake cycle, leading to excessive sleepiness or changes in sleep patterns. Choices B, C, and D are incorrect as they do not primarily control sleep regulation. The thalamus is involved in relaying sensory information, the cortex is responsible for higher brain functions, and the medulla controls vital functions such as heartbeat and breathing.

Correct Answer: B

Rationale: Delegating tasks to appropriate personnel is essential for a nurse to keep other team members productive. By assigning tasks that align with the specific roles and responsibilities of team members, the nurse can enhance work effectiveness and efficiency. Option A is incorrect because delegation is not primarily about ensuring tasks are evenly distributed but rather about utilizing team members' skills effectively. Option C is incorrect as maintaining tight control of all aspects of the workflow can hinder teamwork and limit individual growth. Option D is incorrect because effective delegation involves empowering team members to make decisions within their scope of practice, rather than solely recognizing the importance of their roles.

Correct Answer: D

Rationale: Hazards of improper splinting can lead to the aggravation of a bone or joint injury, reduced distal circulation, and delay in transporting a client with a life-threatening injury. Choosing 'All of the above' (Option D) is the correct answer as it encompasses all the hazards mentioned. Option A is incorrect because it only addresses one aspect of the hazards. Option B is incorrect as it does not cover all the hazards associated with improper splinting. Option C is incorrect as it focuses on only one hazard and does not account for the others.

Correct Answer: B

Rationale: The correct answer is B. Incident reports play a crucial role in risk management by providing data for analysis to prevent future problems. They are not primarily for liability protection (A) or disciplining staff (C). Therefore, choice B is the most appropriate answer. Choosing option D is incorrect because incident reports do not solely exist for all the mentioned purposes, but primarily to provide data for analysis and preventive actions.