Indications for intravenous cannulation include the following: 1- Repeated blood sampling 2- Intravenous fluid administration 3- Intravenous medications administration 4- Intravenous chemotherapy administration 5- Intravenous nutritional support 6- Intravenous blood or blood products administration 7- Intravenous administration of radiological contrast agents for computed tomography, magnetic resonance imaging, or nuclear imaging Watch Video Here :