Correct Answer: B

Rationale: Electrolyte imbalances are a critical concern in patients with anorexia nervosa due to the potential for severe complications such as cardiac arrhythmias, muscle weakness, and neurological disturbances. Prompt identification and management of electrolyte imbalances are essential to prevent life-threatening outcomes.

Correct Answer: C

Rationale: Among the symptoms listed, difficulty sleeping is particularly concerning in patients with major depressive disorder. Insomnia or other sleep disturbances can exacerbate depressive symptoms and increase the risk of suicidal ideation. Healthcare professionals should address sleep issues promptly to provide appropriate interventions and prevent further complications.

Correct Answer: B

Rationale: In managing a patient with OCD who spends excessive time washing hands, allowing the patient to wash hands at specified times is the most appropriate nursing intervention. This approach helps establish a structured routine for hand washing, which can assist in managing OCD symptoms without reinforcing the behavior. Encouraging the patient to stop washing hands may lead to increased anxiety and resistance. Ignoring the behavior can perpetuate the cycle of OCD, and setting strict limits on hand washing time may cause distress and may not effectively address the underlying issues associated with OCD.

Correct Answer: B

Rationale: Monitoring the patient's weight weekly is crucial in the care of individuals with anorexia nervosa as it allows healthcare providers to track changes in weight, which is a key indicator of nutritional status. Regular weight monitoring helps in identifying any significant weight loss or gain, enabling prompt intervention and adjustment of the treatment plan to address the patient's nutritional needs effectively.

Correct Answer: D

Rationale: The correct answer is D, Exploration. In this scenario, the nurse is using the exploration technique to encourage the patient to elaborate further on their feelings. Exploration involves prompting the patient to delve deeper into their thoughts and emotions, fostering a more comprehensive discussion and understanding of their experiences.