A dual-channel spike includes a shaft having inlet and outlet openings defined therein, a pointed distal end, and a proximal end, the shaft extending along an axis between the proximal end and the pointed distal end, the pointed distal end configured to puncture an intravenous fluid bag; a handle attached to the proximal end of the shaft; an inlet connector fluidly coupled to the handle, the inlet connector configured to be fluidly connected to a first fluid line; an outlet connector fluidly coupled to the handle, the outlet connector configured to be fluidly connected to a second fluid line; an inlet channel defined in the shaft and the handle, the inlet channel fluidly coupling the inlet connector and the outlet opening; and an outlet channel defined in the shaft and the handle, the outlet channel fluidly coupling the outlet connector and the inlet opening.