Which type of phlebitis is associated with the infusion of certain medications, such as potassium?

Chemical phlebitis occurs specifically due to the irritation of the vein wall caused by the infusion of certain substances, including medications. When irritating solutions such as potassium, certain antibiotics, or hypertonic solutions are administered, they can cause inflammation of the vein, leading to symptoms like redness, swelling, and tenderness along the vein trajectory. This type of phlebitis is distinct from other forms because it is directly related to the chemical nature of the infused substance rather than factors such as infection (bacterial phlebitis) or mechanical trauma (mechanical phlebitis).

In contrast, post infusion phlebitis refers to inflammation that develops after the intravenous access has been removed, and it does not relate directly to the chemical properties of the substances previously infused. Understanding these differences is crucial in clinical practice for effective prevention and management of phlebitis, ensuring the selection and administration of intravenous medications is done with an awareness of their potential to irritate the vascular system.