Correct Answer: C

Rationale: Increased urine osmolarity is the best assessment finding supporting a nursing diagnosis of Deficient fluid volume in a male client with hyperglycemia. In hyperglycemia, there is increased glucose in the blood, which leads to osmotic diuresis. This results in the excretion of large amounts of urine that is concentrated (high osmolarity), leading to dehydration and fluid volume deficit. Cool, clammy skin (Choice A) is more indicative of poor perfusion, distended neck veins (Choice B) are associated with fluid volume excess, and decreased serum sodium level (Choice D) could be a result of dilutional hyponatremia due to fluid overload rather than deficient fluid volume.

Correct Answer: A

Rationale: Exercising in the afternoon may coincide with the peak action of NPH insulin, increasing the risk of hypoglycemia. The peak action of NPH insulin typically occurs 4-12 hours after administration, so exercising during this time can further lower blood sugar levels. Choices B, C, and D are better options as they suggest exercising at times that are less likely to overlap with the peak insulin action, reducing the risk of hypoglycemia.

Correct Answer: C

Rationale: The correct solution for nasogastric tube irrigation in this scenario is sodium chloride. The client's low sodium level of 132 mEq/L indicates the need to avoid further imbalance, making sodium chloride the most appropriate choice. Using tap water, which lacks electrolytes, or sterile water could potentially exacerbate the electrolyte imbalance. Normal saline, while similar to sodium chloride, may not be the best choice as it contains a higher concentration of sodium, which could further elevate the client's already borderline sodium level.

Correct Answer: B

Rationale: The correct answer is B: Decisional activities. A nurse manager conducting evaluations and reviewing staffing needs for the future involves making decisions related to resource allocation, planning, and problem-solving. These activities fall under the category of decisional activities in management. Choice A, Interpersonal activities, would involve activities like communicating, motivating, and leading staff. Choice C, Informational activities, would involve activities like gathering and disseminating information. Choice D, Transformational activities, would involve inspiring and motivating staff to achieve organizational goals through vision and change.

Correct Answer: D

Rationale: The best definition of management encompasses the comprehensive process of planning, organizing, commanding, coordinating, and controlling work groups to achieve organizational goals. Choice A is too limited, focusing only on ensuring work completion. Choice B is overly restrictive as management involves more than mere control. Choice C is more specific than the correct answer, which encompasses a broader range of managerial functions.