Port placement for PN is generally indicated for long-term use, defined as more than 6 weeks. Which option best matches this definition?

Port placement for PN is generally indicated for long-term use, defined as more than 6 weeks. Which option best matches this definition?

• A. Immediately after PN
• B. For short-term PN
• C. For long-term use (>6 weeks)
• D. Never

Answer: (C)

The main idea is that port placement is chosen when parenteral nutrition is expected to be required for a longer period. An implanted central venous port provides durable, repeated access to a central vein through a catheter while staying under the skin, which makes it convenient for long-term PN and can reduce infection risk compared with external lines. This option best matches the definition because it explicitly describes long-term use, defined here as more than six weeks. If PN is expected to be short-term, a peripheral IV or a non-implanted central line is usually used instead, since the port procedure is more invasive and reserved for longer durations. The “never” choice doesn’t fit because there are clear clinical scenarios where long-term PN necessitates durable access. So, the port is indicated for long-term use over six weeks, aligning with the option that describes long-term PN access.

The main idea is that port placement is chosen when parenteral nutrition is expected to be required for a longer period. An implanted central venous port provides durable, repeated access to a central vein through a catheter while staying under the skin, which makes it convenient for long-term PN and can reduce infection risk compared with external lines.

This option best matches the definition because it explicitly describes long-term use, defined here as more than six weeks. If PN is expected to be short-term, a peripheral IV or a non-implanted central line is usually used instead, since the port procedure is more invasive and reserved for longer durations. The “never” choice doesn’t fit because there are clear clinical scenarios where long-term PN necessitates durable access.

So, the port is indicated for long-term use over six weeks, aligning with the option that describes long-term PN access.