A patient support apparatus comprising a base, an intermediate frame arranged for movement relative to the base, a support deck disposed on the intermediate frame to provide support for a patient, and a telescoping assembly operatively attached to the intermediate frame. The telescoping assembly comprises a support movable between a collapsed position and an extended position, a lock operable to releasably hold the support in the extended position, and an accessory manually movable by a user relative to the support between a stowed position and a use position. The accessory comprises a deactivator operable to deactivate the lock remotely from the user in response to the user manually moving the accessory relative to the support toward the stowed position thereby enabling movement of the support from the extended position to the collapsed position.