UPDATE: After initially denying it, Lohan has confirmed she failed.
If true, she could face 30 days in jail, according to the terms of her probation. Lindsay was released from jail last month after serving only 14 days of a 90-day sentence for violating probation for her 2007 drug case.
A D.A. spokesperson told TMZ that her office has not been "officially notified" of the test results.
For what it's worth, Lindsay tells Us Weekly that the drug test report is untrue.
"I'm fine," she said. "They're all nuts."
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