What might indicate a patient is experiencing phlebitis?

Pain and swelling at the IV site are classic indicators of phlebitis. Phlebitis, which is an inflammation of the vein often due to irritation from intravenous (IV) catheter insertion or medication infusion, typically presents with localized symptoms. When phlebitis occurs, the affected area may become red, warm, and tender to the touch, alongside swelling. This localized inflammatory response is a direct result of the body reacting to the injury or irritation of the vein, hence the presence of pain and swelling at the IV site holds significant diagnostic value for this condition.

Low blood pressure, cyanosis and extreme fatigue, as well as rales or rhonchi, typically point to systemic issues or complications that do not specifically relate to phlebitis. These options refer to a variety of other medical concerns that might involve broader systemic responses or complications rather than localized vein inflammation.