Correct Answer: B

Rationale: The correct answer is asking about shortness of breath during normal daily activities because these symptoms suggest right-sided heart failure, leading to increased pressure in the systemic venous system. This pressure causes fluid to shift into the interstitial spaces, resulting in edema. In an ambulatory patient, lower extremities are typically affected first due to gravity. By asking about shortness of breath, the nurse can gather information to confirm the nursing diagnosis of activity intolerance and fluid volume excess, both associated with right-sided heart failure. The other choices are less relevant in this context and do not directly address the client's presenting symptoms.

Correct Answer: D

Rationale: To prevent venous thrombus formation, promoting venous return is crucial. Encouraging frequent ambulation in the hallway helps prevent venous stasis and reduces the risk of thrombus formation in immobile clients. Option A (using the incentive spirometer) aids in alveolar expansion to prevent atelectasis, not specifically venous thrombosis. Option B (elevating the head of the bed during meals) reduces the risk of aspiration, not venous thrombosis. Option C (using aseptic technique for dressing changes) reduces the risk of postoperative infection, not specifically venous thrombosis. Therefore, among the options provided, encouraging frequent ambulation in the hallway is the most effective measure to prevent venous thrombosis.

Correct Answer: A

Rationale: Non-reversible dementia refers to a condition where individuals experience permanent and often progressive cognitive decline. Pick's disease is a type of non-reversible dementia characterized by changes in personality, behavior, and language difficulties. Syphilis (Choice B) is a reversible cause of dementia that can be treated with antibiotics. Encephalopathy (Choice C) is a broad term for brain dysfunction that can be reversible or irreversible depending on the cause. Hyperthyroidism (Choice D) can lead to cognitive impairment but is reversible with appropriate treatment. Therefore, Pick's disease is the correct example of non-reversible dementia among the options provided.

Correct Answer: B

Rationale: The client's statement about aliens coming to get them could indicate confusion, which raises concerns about their neurologic status. Since informed consent for surgery requires the client to be mentally competent, the nurse should assess the client's neurologic status to ensure they understand and can legally provide consent. Option A of making the client comfortable and letting them sleep does not address the potential neurologic issue. If the nurse finds the client to be confused, it is essential to inform the surgeon and seek permission from the next of kin if necessary. Therefore, assessing the client's neurologic status is the priority to ensure the client's ability to consent to the surgery.

Correct Answer: C

Rationale: When the nurse is unable to distinguish the point at which the first sound was heard while taking a client's blood pressure, the best action is to deflate the cuff to zero and wait 30 to 60 seconds before reattempting the reading. Deflating the cuff for this duration allows blood flow to return to the extremity, ensuring an accurate reading on that extremity a second time. Option A of deflating the cuff completely and immediately reattempting the reading could lead to a falsely high reading. Option B, re-inflating the cuff completely and leaving it inflated for 90 to 110 seconds, reduces circulation, causes pain, and may alter the reading. Option D, documenting the exact level visualized on the sphygmomanometer where the first fluctuation was seen, is not a reliable method for assessing blood pressure and does not address the issue of obtaining an accurate reading.