WHITE PLAINS, N.Y. — The Westchester medical examiner says new tests on the wrong-way driver who killed eight people on a New York highway may show lower levels of alcohol and marijuana.

The original autopsy found that 36-year-old Diane Schuler was very drunk and high when she drove her minivan, loaded with children, into an oncoming SUV on July 26.

Her husband, Daniel Schuler, rejects that finding and is arranging for blood and tissue samples to be retested.

But the medical examiner’s office said Wednesday that normal chemical changes over six weeks could mean different levels of alcohol and marijuana than in its original autopsy.

Daniel Schuler’s investigator, Tom Ruskin, said his experts believe new test results should be very close to the originals.