Correct Answer: B

Rationale: Nasogastric suction can lead to significant potassium loss due to the continuous drainage of gastric contents, increasing the risk of a potassium deficit. Choices A, C, and D do not directly result in the significant loss of potassium. Renal failure may lead to potassium retention rather than a deficit. Addison's disease is associated with adrenal insufficiency, not potassium depletion. Potassium-sparing diuretics, as the name suggests, typically help retain potassium rather than cause a deficit.

Correct Answer: A

Rationale: The correct answer is A: Serum glucose level. In Cushing's syndrome, there is excess cortisol production which can lead to hyperglycemia. Successful treatment of Cushing's syndrome aims to normalize cortisol levels, resulting in a decline in serum glucose levels. Choice B, hair loss, is not specifically associated with Cushing's syndrome or its treatment. Choice C, bone mineralization, is often compromised in Cushing's syndrome due to the effects of excess cortisol on bones; however, successful treatment would aim to improve bone health rather than decline it. Choice D, menstrual flow, is not directly linked to Cushing's syndrome or its treatment, so a decline in menstrual flow would not be an expected outcome of successful treatment.

Correct Answer: A

Rationale: In a client experiencing hypoglycemia, tachycardia is a common symptom. This occurs due to the release of adrenaline in response to low blood glucose levels, which stimulates the heart to beat faster. Polyuria, the increased production of urine, flushed skin, and dry mouth are not typical symptoms of hypoglycemia. Polyuria is more commonly associated with conditions like diabetes insipidus or uncontrolled diabetes mellitus. Flushed skin and dry mouth are not direct physiological responses to low blood sugar levels.

Correct Answer: A

Rationale: The correct answer is 'Networking.' Networking involves building relationships and connecting with staff, patients, and family members to establish a supportive network. In this scenario, the nurse manager is engaging in networking by interacting with various individuals to understand how these interactions influence patient care. 'Employee development' involves activities aimed at enhancing employees' skills and knowledge. 'Coaching' focuses on guiding individuals to improve performance, while 'Monitoring' involves overseeing and supervising activities to ensure compliance and quality.

Correct Answer: A

Rationale: When introducing a new policy on the unit, it is essential for the nurse manager to involve staff members in the decision-making process. This approach helps in gathering input and insights from the team, fostering a sense of ownership and commitment. By communicating the reasons behind the policy change, the nurse manager ensures transparency and promotes understanding among the staff, leading to buy-in and acceptance of the new policy. Choice B is incorrect because implementing a policy change without involving staff and explaining the rationale may lead to resistance or lack of understanding. Choice C is not ideal as delegation without active involvement and communication with the team may result in misunderstandings or incomplete implementation. Choice D lacks the crucial step of involving staff in the decision-making process, which is important for successful policy implementation and team engagement.