Correct Answer: A

Rationale: As individuals age, they face various developmental tasks unique to that stage of life. For a 68-year-old client, dealing with the loss of friends becomes a significant aspect of their development. This age group often experiences the passing of peers and friends, leading to feelings of loneliness and the need to adjust to a changing social circle. Commitment to parenthood (Choice B) is more relevant to younger adults in their child-rearing years. Setting career goals (Choice C) is typically associated with early to mid-career stages rather than later in life. Solidification of sense of self (Choice D) is a task that is more commonly associated with earlier adulthood when individuals are establishing their identity. Therefore, the most appropriate developmental task for a 68-year-old client is dealing with the loss of friends.

Correct Answer: C

Rationale: To reduce the risk of venous thrombosis, the nurse should instruct the client to perform dorsiflexion and plantar flexion exercises regularly. These exercises help promote venous return and prevent venous thrombus formation. Options A, B, and D are beneficial in managing other complications of immobility, such as atelectasis and pressure ulcers, but they are less effective in preventing venous thrombosis compared to dorsiflexion and plantar flexion exercises.

Correct Answer: C

Rationale: When assisting a client with an acute panic attack, the primary goal is to help reduce their anxiety levels. Encouraging the client to focus on one controllable aspect, like regulating breathing patterns, can aid in calming them down. This intervention helps the client to regain control over their breathing, which can alleviate some of the symptoms associated with panic attacks. Options A and B are incorrect because allowing the client to direct the situation or sit down in a quiet environment may not be beneficial during an acute panic attack. Option D is inappropriate as speaking in a commanding tone can further escalate the client's anxiety rather than helping to calm them down.

Correct Answer: A

Rationale: An increase in the neurotransmitter dopamine is associated with schizophrenia. Dopamine dysregulation is linked to some symptoms of schizophrenia, such as hallucinations and delusions. Depression (choice B) is more commonly associated with abnormalities in serotonin and norepinephrine. Alzheimer's disease (choice C) is primarily characterized by deficits in acetylcholine and other neurotransmitters. Anxiety disorders (choice D) are often linked to imbalances in neurotransmitters like serotonin, norepinephrine, and GABA, rather than dopamine.

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.