Infusion and transfusion are two types of medical procedures that involve delivering substances into the bloodstream. However, they have some differences:

1. Infusion: is when medications, fluids, nutrients, or other substances are injected into a vein or under the skin using a needle and a catheter. Infusion therapy can be used for various purposes, such as treating dehydration, chronic conditions, infections, allergies, or pain.
2. Transfusion: is when blood or blood products (such as plasma, platelets, or white cells) are donated from another person and put into a patient’s bloodstream. Transfusion therapy can be used for various purposes, such as treating blood loss, anemia, bleeding disorders, or infections.

Some examples of infusion and transfusion are:

– Insulin injections for diabetes are a type of subcutaneous infusion.
– Epidurals for childbirth or surgery are a type of epidural infusion.
– Blood transfusions for trauma or surgery are a type of intravenous transfusion.
– Platelet transfusions for leukemia or cancer are a type of intravenous transfusion.