An extension assembly for a catheter having an extension tube, an extension connector and an indicator assembly. The extension tube has a proximal end and a distal end, and, an inner bore. The extension connector has a body with a central bore, with the proximal end of the extension tube coupled to a first end of the body. The extension connector further includes a slot in the body defined by lower end wall and upstanding walls extending therefrom, terminating at an upper opening. A radial passage extends from the central bore to the at least one slot. The indicator assembly has an indicator that is structurally configured to change color in the presence of a chemical indicative of a bladder infection. A wicking member is in fluid communication with the radial passage and the indicator, with the wicking member being positioned between the radial passage and the indicator.