Blood Collection Adapter and Related Systems and Methods

A method, comprising:

• coupling a blood collection assembly to a catheter assembly, wherein the catheter assembly comprises:
• a catheter adapter, comprising a distal end, a proximal end, and a lumen extending through the distal end of the catheter adapter and the proximal end of the catheter adapter;
• a catheter extending distally from the distal end of the catheter adapter;
• and a connector coupled to the catheter adapter and comprising a septum;
• wherein the blood collection assembly comprises a needle assembly and a blood collection adapter, wherein the blood collection adapter comprises a distal piece and a proximal piece movable distally towards the distal piece, wherein the proximal piece of the blood collection adapter comprises a male luer or a cannula;
• moving the proximal piece distally towards the distal piece, wherein the male luer or the cannula is configured to activate the septum of the connector and create a fluid path through the connector in response to moving the proximal piece distally towards the distal piece;
• and
• collecting blood in a blood collection device coupled to the needle assembly after moving the proximal piece distally towards the distal piece.