Final answer:
A Salem-sump is a nasogastric tube and not a central venous line, unlike the other options given which are all types of central venous lines used for various medical purposes.
Step-by-step explanation:
The question concerns the identification of a device that is not a central venous line. Central venous lines are catheters placed into large veins in individuals to administer medication or fluids, obtain blood tests, and measure central venous pressure. Here are the options provided by the question, with explanations:
- A port-a-cath is an implanted device providing access to large veins for long-term medication administration.
- A PICC (Peripherally Inserted Central Catheter) is used for prolonged intravenous access.
- A Swan-Ganz catheter is placed into the pulmonary artery for measuring heart pressures and cardiac output.
- A Salem-sump is a type of nasogastric tube used for stomach decompression and not a central venous line.
Hence, the correct answer to the question is D. A Salem-sump, as it is not a central venous line.