National Football League

Kaepernick comes through as Niners crush Bears

San Francisco, CA (Sports Network) - Colin Kaepernick threw for two touchdowns in his first career start and a smothering San Francisco defense from San gave the 49ers an emphatic 32-7 win over the Chicago Bears on Monday night.

Playing in place of an injured Alex Smith, who is suffering from a concussion he sustained in last week's tie against the Rams, Kaepernick went 16-for-23 for 243 yards and led the 49ers (7-2-1) to scores on their first four possessions.

Smith passed the NFL's ImPACT testing protocol and was able to practice in a limited fashion by Thursday. He reportedly planned on playing Monday night, but was ruled out earlier in the day after being evaluated by 49ers medical director Dr. Dan Garza.

The San Francisco defense, meanwhile, held the Bears to just 151 yards and pummeled Jason Campbell all game. Second-year linebacker Aldon Smith posted 4 1/2 sacks, and the team finished with five along with two interceptions and a safety in the win.

San Francisco head coach Jim Harbaugh was on the sidelines after being sent to the hospital last Thursday with an irregular heartbeat. He had a cardioversion procedure done on his heart, which is an electric shock that restores the heart's normal rhythm, and was back on the practice field on Friday.

Campbell made his first start of the season in place of Jay Cutler, who suffered a concussion due to a helmet-to-helmet hit from Houston linebacker Tim Dobbins in last week's loss to the Texans. Campbell, though, didn't fare nearly as well as his counterpart, as he went just 14-for-22 with 107 yards and a touchdown along with the two picks for the Bears (7-3), who dropped their second straight to fall into a tie with Green Bay for first place in the NFC North.

11/19 23:46:00 ET