The random drug testing is one of the stipulations of Lohan's probation for a 2007 driving under the influence arrest.
The "Mean Girls" and "Freaky Friday" actress served nearly two weeks in jail and underwent treatment for drug and alcohol addiction this summer for violating her probation in the case.
UsMagazine.com said Monday's bench warrant is being held until 8:30 a.m. Friday when the former film star is scheduled to appear in court.
The Web site said Lohan could face an additional 30 days in jail for failing the drug test.
UPI
