Final answer:
Central lines are used for the administration of fluids and medications through a vein near the heart, requiring precise insertion techniques and careful maintenance to prevent infections.
Step-by-step explanation:
A central line is used to administer fluids and medications directly into a large vein, typically near the heart, for a dehydrated human patient or other medical treatments. A central venous catheter, or central line, is typically inserted into a vein in the neck (internal jugular vein), chest (subclavian vein), or groin (femoral vein). However, they can also use other veins in specific circumstances.
Equipment like an IV bag is positioned correctly to ensure proper fluid flow, and in cases such as chemotherapy or treatment for conditions like hydrocephalus, specialized catheters and ports are used to deliver treatments or relieve pressure internally. Patient safety and the prevention of bloodstream infections from central line venous catheters are of high priority in medical care, as noted by the World Health Organization.