Venous Access - GMKA - Global Medical Knowledge Alliance gmka.org/uk/venoznyj-dostupPrivate View Arterial cannulation, injury to artery or nerve, hematoma, infection, lymphatic leak, thrombosis. Venous Access: Obtaining venous access is crucial in the treatment of an acutely injured patient. Venous access allows for administration of medications, fluids, and blood products and facilitates drawing labs.