Correct Answer: A

Rationale: In hypochondriasis, individuals are excessively preoccupied with and worried about having a serious illness, despite reassurance from medical professionals. This self-preoccupation is a key characteristic of hypochondriasis. 'La belle indifference' refers to a lack of concern or distress about symptoms, which is not typically seen in hypochondriasis. Fear of physicians may be present due to the individual's persistent belief in their illness despite medical reassurance. Insight into the source of their fears is usually lacking in hypochondriasis, as individuals often believe their physical symptoms are evidence of a serious illness.

Correct Answer: A

Rationale: Healthcare professionals should be most alert to the possibility of communication errors resulting in harm to the patient during change of shift reports. This is a critical time when information is transferred between healthcare providers, and any errors in communication during this handover can lead to adverse outcomes for the patient.

Correct Answer: B

Rationale: Deep brain stimulation is a treatment approach that involves the surgical implantation of electrodes into specific areas of the brain to stimulate regions identified as underactive in depression. This method aims to modulate brain activity and has shown effectiveness in treating certain cases of depression.

Correct Answer: D

Rationale: Sleep disturbances, such as early morning awakening, are common symptoms of major depressive disorder.

Correct Answer: B

Rationale: When caring for a patient demonstrating manic behavior, it is crucial to monitor vital signs frequently to ensure the patient's physical health is stable. Providing nutrition, such as milkshakes and protein drinks, is essential to meet the patient's dietary needs. Diminishing environmental stimuli by reducing the volume on the television and dimming bright lights can help create a calmer environment. However, keeping the patient distracted with group-oriented activities may not be the most appropriate intervention as it could potentially exacerbate the manic behavior by overstimulating the patient. Therefore, this choice is the one that doesn't apply in managing manic behavior effectively.