Final answer:
The signs of phlebitis include erythema, warmth, edema, and pain/discomfort. These symptoms are consistent with the cardinal signs of inflammation.
Step-by-step explanation:
The signs of phlebitis include erythema (redness), warmth, edema (swelling), and pain/discomfort. These symptoms are consistent with the cardinal signs of inflammation, which also include heat and altered function.
Phlebitis is an inflammation of the vein, often caused by a blood clot or infection.
The increased blood flow and immune response to the injured or infected vein result in the characteristic signs and symptoms of phlebitis.