Ms White told the paper she received a call from the hospital to say her daughter needed urgent brain surgery and asking for her consent.
She described the flight to visit her daughter before she died as a “terrible, terrible journey”.
On the night she was poisoned, Simone and her friends drank six vodka shots served by the hostel, according to the newspaper.
After they fell ill, they decided to go to hospital.
Simone was taken in for surgery just as Ms White arrived at the hospital.
It later became clear that her brain function had gone, and she died on 21 November.
Police in Laos have detained several people in connection with the death of Simone White and five others.
However, officials in the country have released almost no details about the case, with the government keeping a tight lid on information.
Laos is a one-party communist state with no organised opposition.
Simone was a lawyer with global law firm Squire Patton Boggs.