Correct Answer: B

Rationale: Nausea is a common sign of intolerance to enteral feedings and should be addressed promptly. Weight gain is not typically associated with intolerance to enteral feedings; instead, it may indicate other issues such as fluid retention. Constipation is also not a direct indicator of intolerance to enteral feedings. While an elevated heart rate can occur for various reasons, it is less specific to enteral feeding intolerance compared to nausea.

Correct Answer: A

Rationale: The correct answer is A because the client understanding that they can change their living will whenever they want shows comprehension of advance directives. Choices B, C, and D are incorrect: B is inaccurate as both documents serve different purposes; C may not always be the case based on the client's wishes and legal documents; D is incorrect because a living will is not only for serious illness but also for end-of-life care decisions.

Correct Answer: B

Rationale: Corrected Rationale: Poor nutrition increases the risk of developing pressure injuries as it impairs skin integrity and healing. Frequent repositioning, increased fluid intake, and the use of a special mattress are all important interventions for preventing pressure injuries, rather than risk factors for developing them. Repositioning helps relieve pressure, adequate fluid intake maintains skin hydration, and special mattresses redistribute pressure to prevent injuries.

Correct Answer: C

Rationale: Urinary incontinence is a risk factor for skin breakdown, which can lead to the development of pressure injuries. While malnutrition, poor hygiene, and immobility are important considerations in overall patient care, they are not specifically identified as significant risk factors for pressure injuries in this scenario.

Correct Answer: D

Rationale: The correct action for the nurse to take when administering medications through a nasogastric (NG) tube is to dissolve medications separately and flush the tube with sterile water. This is important to prevent interactions between medications and ensure accurate administration. Option A is incorrect because tap water may not be sterile and could lead to contamination. Option B is incorrect as it increases the risk of drug interactions and may affect the effectiveness of each medication. Option C is incorrect as 60 mL of water before each medication may not be enough to ensure proper medication delivery and prevent interactions.