Access ports for providing subcutaneous access to a patient are disclosed. Such access ports may include: a vascular access port for providing subcutaneous access to a patient, the vascular access port comprising a septum and a housing, the septum being configured to be repeatedly punctured with a suitable access mechanism, wherein the housing defines an aperture for capturing the septum, and the housing and the septum define a reservoir, the access port is configured to accommodate a fluid flow rate of at least 1 ml/s, and the access port includes at least one identification attribute comprising a radiographic marker configured to indicate that the access port is configured for accommodating a particular fluid flow rate.
