Sterile intravenous catheter securements and securement dressings that provide simpler, more effective, and lower risk intravenous catheter placement and securement in a patient are described. Catheter securement dressings may include one or more adhesive portions positioned and configured to maintain a position of a catheter assembly following catheterization. Catheter securement dressings may be secured to a patient with an adhesive portion, and the catheter assembly may then be placed into the patient through an access opening in the catheter securement dressing. Portions of catheter securement dressings may then by folded over and adhered to each other and portions of the catheter assembly to secure the catheter assembly to the patient.
