An insertion tool for inserting a catheter into a body of a patient, comprising a housing in which at least a portion of the catheter is initially disposed； a needle distally extending from the housing, at least a portion of the catheter pre-disposed over the needle； a guidewire； a guidewire advancement assembly for selectively distally advancing the distal end of the guidewire out a distal opening of the needle in preparation for distal advancement of the catheter； and a catheter advancement assembly for selectively advancing the catheter in a distal direction, the catheter advancement assembly including a handle assembly, at least one of the guidewire advancement assembly and the handle assembly configured to prevent advancement of the catheter until distal advancement of the guidewire is performed.
