Published: Jan 31, 2011 5:19 PM EST
Updated: Jan 31, 2011 2:19 PM EST

TAMPA, Fla. (AP) - Police say the Tampa woman accused of killing her two teenagers showed signs of drug impairment following a November car crash.

Julie Powers Schenecker struck a vehicle towing a trailer. A Florida Highway Patrol report released Monday said Schenecker had dilated pupils with no reaction to light and "mush-mouthed speech."

Officers didn't do a field sobriety test because she was taken to the hospital. When officers went to the hospital to obtain a blood sample, Schenecker had already checked out.

She was charged with careless driving.

Police allege Schenecker fatally shot her 16-year-old daughter and 13-year-old son last week. She told detectives they were being "mouthy."

Schenecker appeared in court Monday on two counts of first-degree murder.

 (Copyright 2011 by The Associated Press. All Rights Reserved.)