A surgical instrument, comprising: a housing; a shaft extending from the housing, the shaft having proximal and distal ends; an end effector assembly disposed at the distal end of the shaft, the end effector assembly including first and second jaw members (110, 120) movable relative to one another between a spaced-apart position and an approximated position for grasping tissue therebetween, the first and second jaw members including first and second energizable members (112, 122), respectively, disposed thereon for conducting energy between the jaw members and through tissue grasped therebetween; a monopolar assembly including a third energizable member configured to apply energy to tissue, the monopolar assembly movable relative to the end effector assembly between a retracted position, wherein the third energizable member is positioned proximally of the jaw members, and a deployed position, wherein the at least a portion of the third energizable member extends distally from the jaw members; a switch assembly (300, 400) disposed within the housing and configured for switching between a first condition, wherein the bipolar assembly is coupled to a source of energy, and a second condition, wherein the monopolar assembly is coupled to a source of energy; characterized in further comprising: a movable member (64, 416) coupled to the switch assembly and the monopolar assembly, the movable member movable between a first position, wherein the monopolar assembly is disposed in the retracted position and the switch assembly is disposed in the first condition, and a second position, wherein the monopolar assembly is disposed in the deployed position and the switch assembly is disposed in the second condition, wherein the monopolar assembly further includes an insulative sleeve disposed about the shaft and coupled to the movable member, wherein, in the retracted position, the insulative sleeve is positioned proximally of the jaw members and wherein, in the deployed position, the insulative sleeve is disposed at least partially about the jaw members. a housing; a shaft extending from the housing, the shaft having proximal and distal ends; an end effector assembly disposed at the distal end of the shaft, the end effector assembly including first and second jaw members (110, 120) movable relative to one another between a spaced-apart position and an approximated position for grasping tissue therebetween, the first and second jaw members including first and second energizable members (112, 122), respectively, disposed thereon for conducting energy between the jaw members and through tissue grasped therebetween; a monopolar assembly including a third energizable member configured to apply energy to tissue, the monopolar assembly movable relative to the end effector assembly between a retracted position, wherein the third energizable member is positioned proximally of the jaw members, and a deployed position, wherein the at least a portion of the third energizable member extends distally from the jaw members; a switch assembly (300, 400) disposed within the housing and configured for switching between a first condition, wherein the bipolar assembly is coupled to a source of energy, and a second condition, wherein the monopolar assembly is coupled to a source of energy; characterized in further comprising: a movable member (64, 416) coupled to the switch assembly and the monopolar assembly, the movable member movable between a first position, wherein the monopolar assembly is disposed in the retracted position and the switch assembly is disposed in the first condition, and a second position, wherein the monopolar assembly is disposed in the deployed position and the switch assembly is disposed in the second condition, wherein the monopolar assembly further includes an insulative sleeve disposed about the shaft and coupled to the movable member, wherein, in the retracted position, the insulative sleeve is positioned proximally of the jaw members and wherein, in the deployed position, the insulative sleeve is disposed at least partially about the jaw members.