LOS ANGELES (CBS)— The state Department of Public Health fined 12 California hospitals for mistakes that potentially could have seriously injured or killed their patients.

KNX 1070′s Jon Baird reports.

Anaheim Regional Medical Center and Promise Hospital in East L.A were the only two Southern California hospitals fined. In the case of Promise Hospital, a patient was given 10 times more medication per dose than was ordered. The patient’s heart rate dropped dramatically and code blue was called for an emergency, according to health officials.

“Ten of the 12 were for adverse offenses. Four of 10 were a result of medication errors, and another four of the 10 were for retained foreign objects,” said Pam Dickfoss with the Department of Public Health.

All 12 hospitals were fine $50,000. The hospitals must give the state a plan of corrections or they may appeal the fines within 10 days.