The Boston Bruins placed goaltender Jonas Gustavsson on injured reserve Monday after a brief stint in the hospital last week due to an elevated heart rate.

The Bruins recalled goalie Malcolm Subban from the Providence Bruins of the American Hockey League on an emergency basis and also recalled forward David Pastrnak from their AHL affiliate.

Gustavsson was removed from last Tuesday’s game against the Anaheim Ducks due to illness. He was transported to Massachusetts General Hospital and admitted overnight for observation. Preliminary tests came back negative and he was discharged the next day.

“We placed Jonas on injured reserve as we await his final test results,” Bruins general manager Don Sweeney said in a statement. “Pending those final test results, he will be cleared for full participation by our medical staff.”

Gustavsson, 31, has appeared in 15 games for Boston in the 2015-16 season, accruing a 9-3-1 record while posting a 2.38 goals-against average and .915 save percentage. Gustavsson has 163 games of NHL experience with a career 2.84 goals-against average, .915 save percentage and six shutouts. The 6-foot-4, 201-pound native of Danderyd, Sweden, was signed by Boston on Oct. 4 to a one-year, one-way contract.

Subban, 22, has appeared in 26 games this season with Providence, compiling a 14-8-4 record with a 2.45 goals-against average and .913 save percentage. He has appeared in 94 AHL games for Providence, amassing a 45-31-13 record with five shutouts. The 6-2, 200-pound native of Toronto was selected by Boston in the first round (24th overall) of the 2012 NHL draft.

Pastrnak, 19, has played in 18 games for Boston this season, posting nine points (five goals, four assists). He has played in 64 games at the NHL level, registering 15 goals and 21 assists. He has played in three AHL games with Providence this season, recording one goal and three assists. The 6-0, 181-pound native of Havirov, Czech Republic, was drafted by the Bruins in the first round (25th overall) in 2014.