Correct Answer: C

Rationale: Autonomy is the ethical principle that upholds an individual's right to make decisions about their own medical treatment, free from coercion or undue influence. In this scenario, the 70-year-old patient has voluntarily decided not to have the pacemaker inserted despite the physician's recommendation. The fact that the decision is respected by the family further highlights the importance of autonomy in this situation. Respecting the patient's right to make choices regarding their own healthcare, even if it goes against medical advice, demonstrates a commitment to autonomy as an ethical principle.

Correct Answer: D

Rationale: Negligence is the failure to take proper care in doing something, which results in harm or injury to someone else. In this scenario, the client falling out of bed because side rails were not used indicates a lack of proper care or attention by the staff or caregiver responsible for the client. It shows a failure to protect the client from harm, which aligns with the definition of negligence. This situation does not fit the definitions of a felony, battery, or assault.

Correct Answer: D

Rationale: COPD (Chronic Obstructive Pulmonary Disease) patients often struggle with breathing difficulties due to their conditions, hence it is important for them to conserve their energy as much as possible. Standing while performing activities like shaving or combing hair can be physically demanding for COPD patients as it requires more energy and can lead to increased shortness of breath. It is recommended for COPD patients to sit down or assume a supported position (like the tripod position with elbows supported on a table) to reduce the energy expended and minimize the strain on their respiratory system. Standing in front of the mirror while performing grooming activities is a task that can be easily modified to a seated position, thus conserving energy and reducing the risk of exacerbating breathing difficulties for COPD patients.

Correct Answer: A

Rationale: Task A, obtaining special food for the patient when she requests it, can be delegated to the nursing assistant. This task involves simple assistance with gathering food items and does not require specific medical knowledge or interventions. Tasks B, C, and D involve more direct patient care and assessment, which should be performed by the nursing staff who have the necessary training and expertise to address the complexities of anorexia nervosa.

Correct Answer: C

Rationale: Ménière's disease is characterized by the triad of symptoms including progressive sensorineural hearing loss, tinnitus, and vertigo. The audiometric testing in Ménière's disease often shows a "carrot-shaped" configuration, which refers to low-frequency hearing loss initially and eventually spreading to involve higher frequencies. This distinctive pattern of hearing loss helps differentiate Ménière's disease from other causes like Presbycusis (age-related hearing loss) or Noise-induced hearing loss. Acoustic neuroma can present with unilateral sensorineural hearing loss but typically does not exhibit the specific "carrot-shaped" configuration seen in Ménière's disease.