By Jen Heger - Breaking Celebrity News Assistant Managing Editor

The Santa Monica Police didn't request a blood sample from Lindsay Lohan when she was in the emergency room after she rear ended a big rig truck last Friday, Breaking Celebrity News is exclusively reporting.

As we previously reported, Lohan rear ended the dump truck on Pacific Coast Highway. The Porsche, driven by Lindsay, was totaled and the accident sent the actress and her assistant to the emergency room. Both were later released and miraculously didn't suffer serious injuries.

"Lindsay was given a portable breathalizer test along with several other field sobriety tests and she passed them all," a source close to the Mean Girls star tells Breaking Celebrity News. "She did everything that was asked of her and cooperated fully. This is why the cops didn't request a blood sample from Lindsay, as they concluded that she wasn't under the influence and didn't need to be given a blood test. Lindsay was shaken up obviously about the accident