A catheter kit comprising: a catheter having a proximal end and a distal end; a catheter connection hub for connection to the catheter's proximal end; and a stylet assembly for at least partial insertion into the catheter and catheter connection hub proximate the catheter's proximal end, the stylet assembly comprising: a base portion comprising a central member extending therefrom; a stylet extending from and secured to the central member of the base portion, the stylet sized and adapted for insertion at least partially into the catheter associated with the catheter connection hub, the central member configured to be received by a receiving portion of the corresponding catheter connection hub in such a manner to contain the stylet within the catheter; and at least two securing members extending from the base portion and configured to removably attach to a connection portion of the catheter connection hub; characterized in that the connection of the catheter connection hub to the catheter's proximal end comprises a releasable connection for enabling insertion of the stylet into the catheter with or without use of the catheter connection hub; the stylet assembly is sized and configured to engage with the catheter connection hub and to position the central member of the base portion proximate to the proximal end of the catheter when, with the use of the catheter connection hub, the stylet is received in both the catheter and the catheter connection hub having the catheter received therein in order to position a distal end of the stylet at a first location relative to the catheter; and the stylet assembly is further sized and configured to position the central member of the base portion proximate to the proximal end of the catheter when, without the use of the catheter connection hub, the stylet of the stylet assembly is received in only the catheter in order to position the distal end of the stylet at substantially the first location. a catheter having a proximal end and a distal end; a catheter connection hub for connection to the catheter's proximal end; and a stylet assembly for at least partial insertion into the catheter and catheter connection hub proximate the catheter's proximal end, the stylet assembly comprising: a base portion comprising a central member extending therefrom; a stylet extending from and secured to the central member of the base portion, the stylet sized and adapted for insertion at least partially into the catheter associated with the catheter connection hub, the central member configured to be received by a receiving portion of the corresponding catheter connection hub in such a manner to contain the stylet within the catheter; and at least two securing members extending from the base portion and configured to removably attach to a connection portion of the catheter connection hub; characterized in that the stylet assembly comprising: a base portion comprising a central member extending therefrom; a stylet extending from and secured to the central member of the base portion, the stylet sized and adapted for insertion at least partially into the catheter associated with the catheter connection hub, the central member configured to be received by a receiving portion of the corresponding catheter connection hub in such a manner to contain the stylet within the catheter; and at least two securing members extending from the base portion and configured to removably attach to a connection portion of the catheter connection hub; a base portion comprising a central member extending therefrom; a stylet extending from and secured to the central member of the base portion, the stylet sized and adapted for insertion at least partially into the catheter associated with the catheter connection hub, the central member configured to be received by a receiving portion of the corresponding catheter connection hub in such a manner to contain the stylet within the catheter; and at least two securing members extending from the base portion and configured to removably attach to a connection portion of the catheter connection hub; characterized in that the connection of the catheter connection hub to the catheter's proximal end comprises a releasable connection for enabling insertion of the stylet into the catheter with or without use of the catheter connection hub; the stylet assembly is sized and configured to engage with the catheter connection hub and to position the central member of the base portion proximate to the proximal end of the catheter when, with the use of the catheter connection hub, the stylet is received in both the catheter and the catheter connection hub having the catheter received therein in order to position a distal end of the stylet at a first location relative to the catheter; and the stylet assembly is further sized and configured to position the central member of the base portion proximate to the proximal end of the catheter when, without the use of the catheter connection hub, the stylet of the stylet assembly is received in only the catheter in order to position the distal end of the stylet at substantially the first location.