Preventive care focuses on stopping disease before it starts or catching problems early so they are easier to manage. Blood pressure screenings help find hypertension before it causes heart or stroke problems, allowing early steps to prevent complications. Immunizations prevent infectious diseases by building immunity ahead of exposure. Mental health counseling supports resilience, coping skills, and early intervention to avert worsening mood or anxiety issues, contributing to overall prevention of mental health crises. Taken together, these three illustrate a broad, proactive approach to health that spans physical and mental well-being, making the combination the best example of preventive care.

A durable power of attorney in healthcare is a legal document that lets you name someone you trust to make medical decisions for you if you become unable to speak for yourself. The key idea is that the document remains in effect even if you are incapacitated, so the person you designate (your healthcare agent or proxy) can decide about treatments, procedures, and overall care within the scope you set, aiming to honor your values and wishes. It’s not a physician or nurse, and it’s not a will or other property document. The agent’s authority kicks in only when you lack decision-making capacity, and you can revoke or change it whenever you have capacity. Nurses and the treatment team use this document to guide decisions and ensure your preferences are respected.

Maintaining IV line patency is essential for reliable delivery of fluids and medications. Flushing the line with normal saline helps keep the catheter open by pushing out any clotting material or debris, confirming patency, and allowing immediate administration without delays. This is especially important in a thin, emaciated patient where veins are small and more prone to occlusion or infiltration. By verifying that the line flows smoothly, you prevent interruptions in therapy and reduce the need to reinsert or reposition the catheter. Other options don’t directly keep the line functioning: stopping the procedure for a break in technique is a safety measure, but it doesn’t ensure the line stays patent; changing the line on a routine schedule isn’t universally required and doesn’t guarantee patency; using a larger-gauge needle in fragile veins increases trauma and risk.

Gathering data about how the patient is doing is the main idea here. Asking the patient to rate their pain on a scale, along with taking vital signs like blood pressure and pulse, is collecting information about the current state. This step establishes a baseline and helps the nurse understand the level of pain and how it may be affecting hemodynamics, comfort, and recovery after surgery. In the nursing process, this is the assessment phase, where subjective reports (the patient’s pain rating) and objective data (vital signs) are gathered to guide next steps. From this assessment, the nurse can plan appropriate interventions, monitor effectiveness, and adjust care as needed. The planning phase would involve setting goals and selecting pain-relief strategies; the diagnosis phase would involve interpreting the data to identify a nursing problem (like acute pain); and the implementation phase would involve administering analgesics or other comfort measures. But the act of asking the patient to rate pain and taking vitals is the assessment component.