An apparatus includes a catheter, a housing configured to house at least a portion of the catheter, and an actuator movably coupled to the housing. The housing has a first port configured to receive a proximal end portion of the catheter and a second port configured to couple the housing to an indwelling vascular access device. A portion of the actuator is disposed within the housing and is configured to be movably coupled to a portion of the catheter. The actuator is configured to be moved a first distance to move a distal end portion of the catheter a second distance greater than the first distance from a first position to a second position. The distal end portion of the catheter is disposed within the housing when in the first position and is distal to the indwelling vascular access device when in the second position.
