(b-1) Any person arrested for violating this Section is subject to chemical testing of his or her blood, breath, other bodily substance, or urine for the presence of alcohol, other drug or drugs, intoxicating compound or compounds, or any combination thereof, as provided in Section 11-501.1, if the testing occurs within 12 hours of the time of the occurrence of the accident that led to his or her arrest. The person's driving privileges are subject to statutory summary suspension under Section 11-501.1 if he or she fails testing or statutory summary revocation under Section 11-501.1 if he or she refuses to undergo the testing.
For purposes of this Section, personal injury shall mean any injury requiring immediate professional treatment in a medical facility or doctor's office.