An intravenous catheter assembly having a ready position for use and a safe position, comprising: a catheter tube having a proximal end and a distal end; a catheter hub in fluid communication with the catheter tube and having a proximal end, a distal end connected to the proximal end of the catheter tube, and a side port that provides fluid communication to an integrated extension tube; an elastomeric septum positioned internally to the catheter hub proximal to the opening of the side port to prevent fluid leak from the interior of the catheter hub; an introducer movable between the ready position and the safe position, the introducer including a needle hub, a tip protector and an introducer needle having an outer wall, a proximal portion connected to the needle hub and a distal end having a sharp distal tip, the introducer needle disposed, at least in part, within the catheter tube when the introducer is in the ready position, the tip protector positioned to prevent access to the sharp distal tip of the introducer needle when the introducer is in the safe position, wherein the introducer needle defines a lumen that extends from the sharp distal tip toward the proximal portion and includes a notch spaced proximal from the sharp distal tip that allows fluid to flow into a flash indication space between the catheter tube and the introducer needle when the introducer is in the ready position; a containment positioned proximal to the elastomeric septum and at least partially external to the catheter hub, the containment configured to conform to the outer wall of the needle and to receive the notch as the notch emerges from the septum so that the notch is positioned inside the containment and prevented from providing an egress for fluid flow after the introducer is moved from the ready position. a catheter tube having a proximal end and a distal end; a catheter hub in fluid communication with the catheter tube and having a proximal end, a distal end connected to the proximal end of the catheter tube, and a side port that provides fluid communication to an integrated extension tube; an elastomeric septum positioned internally to the catheter hub proximal to the opening of the side port to prevent fluid leak from the interior of the catheter hub; an introducer movable between the ready position and the safe position, the introducer including a needle hub, a tip protector and an introducer needle having an outer wall, a proximal portion connected to the needle hub and a distal end having a sharp distal tip, the introducer needle disposed, at least in part, within the catheter tube when the introducer is in the ready position, the tip protector positioned to prevent access to the sharp distal tip of the introducer needle when the introducer is in the safe position, wherein the introducer needle defines a lumen that extends from the sharp distal tip toward the proximal portion and includes a notch spaced proximal from the sharp distal tip that allows fluid to flow into a flash indication space between the catheter tube and the introducer needle when the introducer is in the ready position; a containment positioned proximal to the elastomeric septum and at least partially external to the catheter hub, the containment configured to conform to the outer wall of the needle and to receive the notch as the notch emerges from the septum so that the notch is positioned inside the containment and prevented from providing an egress for fluid flow after the introducer is moved from the ready position.