For what purpose are PICC lines most commonly used?

PICC lines, or Peripherally Inserted Central Catheters, are most commonly used for long-term medication administration. This is because PICC lines can remain in place for an extended duration, often weeks to months, allowing for the administration of medications that may irritate or damage smaller veins if given through a standard needle or peripheral IV. These medications can include chemotherapy agents, long-term antibiotics, and other intravenous treatments that require consistent delivery over time.

The design of a PICC line enables it to reach larger central veins, reducing the risk of complications such as phlebitis or infiltration that might occur with shorter peripheral IVs. This characteristic makes PICC lines particularly useful for patients with chronic illnesses or those requiring frequent access to their venous system.

In contrast, other options like emergency blood transfusions and immediate intravenous fluids are typically handled with standard peripheral IVs, which are designed for quick access to the bloodstream but not for prolonged use. Temporary catheter placement is not a primary purpose of a PICC line, as it is specifically intended for long-term access rather than short-term applications.