Correct Answer: A

Rationale: A decrease in heart rate can indicate improved fluid balance and successful treatment of fluid volume deficit. When a client is experiencing fluid volume deficit, the heart rate typically increases as a compensatory mechanism to maintain cardiac output. As fluid volume is restored and the deficit is corrected, the heart rate should decrease back towards a normal range. Choices B, C, and D are less likely to be directly related to the successful treatment of fluid volume deficit. An increase in blood pressure may occur as a compensatory response to fluid volume deficit; a decrease in respiratory rate is not a typical indicator of fluid volume deficit correction; and an increase in urine output can be a sign of improved kidney function but may not directly reflect fluid volume status.

Correct Answer: C

Rationale: In this scenario, the nurse should instruct the client to take deep rhythmic breaths as a non-pharmacological pain management method. Deep breathing can help the client relax, reduce stress, and manage pain effectively. Applying heat or ice for prolonged periods can lead to tissue damage. Removing distractions can be helpful for promoting relaxation but may not directly address the pain itself.

Correct Answer: C

Rationale: The correct answer is C: Back. Back injuries are common among healthcare workers, especially nurses, due to improper lifting techniques and bending. Working on an orthopedic rehabilitation unit involves frequent lifting and positioning of patients, putting the nurse at risk of back injuries. Preventing back injuries is crucial for maintaining the nurse's health and ability to provide care effectively. Choices A, B, and D are incorrect because while lifting and positioning patients may involve these body parts, back injuries are most likely to occur due to the strain and stress placed on the back during such activities.

Correct Answer: B

Rationale: The toddler with severe deep abrasions covering 98% of the body would be prioritized for treatment last because these extensive injuries may require immediate attention and resources. The other choices present serious conditions but are not as severe or life-threatening as the toddler's injuries. The infant with an intermittent bulging anterior fontanel may have signs of increased intracranial pressure, requiring prompt evaluation. The preschooler's fractures, though serious, can be managed without immediate critical intervention. The school-age child with singed eyebrows and hair may have suffered burns but does not exhibit injuries as severe as the toddler's deep abrasions.

Correct Answer: B

Rationale: The correct answer is B. When documenting a client in a non-responsive state with stable vital signs and independent breathing, the nurse should document the Glasgow Coma Scale score to assess the level of consciousness and the regularity of respirations. Choice A is incorrect because 'comatose' implies a deeper level of unconsciousness than described in the scenario. Choice C is incorrect as it does not provide a specific assessment like the Glasgow Coma Scale score. Choice D is incorrect as a Glasgow Coma Scale score of 13 indicates a more alert state than described in the scenario.