Abstract: A catheter access system comprises and integrally molded base sheet which forms first and second opposed slide valve walls. The slide valve walls form an upwardly-open longitudinal valley therebetween. An elongated sliding member is received for slidable movement within the longitudinal valley. A plurality of slide valve inlet ports extend through the first slide valve wall. A slide valve outlet port extends through the second slide valve wall. A plurality of syringes are mounted on the integrally-molded base sheet for fluid communication with the slide valve inlet ports. The elongated sliding member is movable between a plurality of discrete longitudinal positions to individually select slide valve inlet ports for connection to the slide valve outlet port. The sliding member has a plurality of sliding member passageways corresponding to the slide valve inlet ports.