
Last September, the Institute for Safe Medication Practices (ISMP) reported an incident that occurred at a Midwestern hospital. A pharmacy technician had stocked an automated dispensing cabinet with heparin 10,000 units/ml vials in a drawer reserved for heparin 10 units/ml. The nurses retrieving the vials did not notice the discrepancy in strength and used the 10,000 units/ml heparin for umbilical line flushes of six premature infants. Three of the babies died of heparin overdose.