A New York mother claims her daughter was left partially paralyzed by a marijuana-infused brownie she bought at her high school . Danieel Buchanan , 17 , was sold the snack by a classmate at Benjamin Banneker High School in Brooklyn on February 27 , thinking its ingredients were innocent . But the teenager started to feel sick soon after and went to the school nurse with a racing heart rate and high blood pressure . Scroll down for video . Concern : Danieel Buchanan , 17 , was sold a pot brownie at Benjamin Banneker High School in Brooklyn . She fell sick soon after and her mother claims she has been partially paralyzed ever since . The school then called her mother Allison at 11am to say they were taking her daughter to the emergency room at Brooklyn Hospital . After an initial check-up she was released into her parents ' care - but her condition started to dramatically deteriorate . Her mother told PIX 11 she could n't walk by herself , could barely eat and could only handle a few sips of tea at a time . At 3am the next morning , she took the youngster to Beth Israel in Manhattan , but was quickly transferred to nearby Mount Sinai . Her mother says when Danieel arrived she began convulsing and has been partially-paralyzed ever since . 'She ’ s not able to walk . She can ’ t stand . She can ’ t sit up , ' Mrs Buchanan told the station . 'They have never seen anything like this before . ' Blood tests revealed she had marijuana in her system - but no other drugs were present . Impact : The teenager is being treated in Mount Sinai hospital in New York . Her mother claims she can not sit up by herself , walk or eat properly . Action : The 18-year-old student who sold her the brownie at Benjamin Banneker High School in Brooklyn has been suspended and the NYPD are investigating the incident . Mrs Buchanan insists she has never been involved in drugs or alcohol before and does n't have any underlying health problems . 'She did n't know it had weed in there , she thought it was just a regular brownie , ' Mrs Buchanan said . Doctors told her she needed rehabilitative therapy , but her insurance company , Empire Blue Cross , Blue shield , has denied her the coverage . The Daily Mail Online has contacted them for comment . The 18-year-old student who sold her the brownie has been suspended and the NYPD are investigating the incident . History : Allison Buchanan , the girl 's mother says her daughter has never been involved in drugs before and has no underlying health problems .
Danieel Buchanan was sold the snack at NYPD . The 17-year-old from Brooklyn , New York , quickly started to feel sick . School nurse took her to hospital with high blood pressure and fast pulse . Her parents then took her home - but she could n't walk on her own or eat . Returned to hospital , and has been lying in a hospital bed ever since .