Combining low flow and high flow in intravenous infusion

A flow controller providing a high flow state and a low flow state, the flow controller comprising:

• a conduit configured to receive a liquid from a fluid source and to deliver the liquid to a subject;
• and
• a valve coupled to the conduit, the valve configured to be positioned in a first position to provide the high flow state and in a second position to provide the low flow state, the second position configured to constrict the conduit to provide an uninterrupted low flow rate through the conduit.

A flow controller providing a high flow state and a low flow state, the flow controller comprising:

• a conduit configured to receive a liquid from a fluid source and to deliver the liquid to a subject, the conduit having a partition dividing the conduit into a high flow path and a low flow path;
• and
• a switch positioned within the conduit at the partition, the switch configured to be positioned in a first position to block the low flow path to provide the high flow state and in a second position to block the high flow path to provide the low flow state.