06/15/2012 at 02:55 PM EDT
Is there more trouble for Lindsay Lohan
or just a false alarm?
Paramedics rushed to her luxury waterfront hotel Friday morning after a 911 caller reported she was unconscious but she was not hospitalized as previously reported, according to authorities.
Lohan's rep Steve Honig blamed the latest drama – the actress was hospitalized
just a week ago after a car accident – on her "grueling schedule" filming the Elizabeth Taylor biopic Liz & Dick.
"She was on set last night at 7 p.m. and worked through the night until 8 a.m. this morning," says the rep. "She took a nap before shooting her final scene. Producers were concerned when she did not come out of her room and called paramedics as a precaution."
Honig adds: "Lindsay was examined and is fine, but did suffer some exhaustion and dehydration."
Paramedics responded to Lohan's hotel
, the Ritz-Carlton in Marina del Rey, Calif., at 10:15 a.m., according to an L.A. County Fire Department spokesman.
Lohan, 25, was evaluated at the scene. An earlier report by a local Los Angeles television station that the actress was hospitalized was incorrect.
"She is resting now and is hoping to be back on set later this afternoon," says Honig.
Additional reporting by ELAINE ARADILLAS