A recent study done at Brigham and Women’s Hospital in Boston shows using bar codes can help reduce hospital drug errors. Under Brigham and Women’s Hospital’s new system, bar codes are placed on each patient’s wrist band as well as on each container of medicine. A patient’s prescriptions are entered into their electronic chart. Before nurses give a medication to a patient, they scan the bar code on the patient’s wrist band and then the bar code on the container of medicine. The system tells the nurse if it’s the wrong medicine or if they are giving the medicine too soon. Nurses also get alerts if a dose is overdue. Researchers looked at hospital units that used the new system. They were compared with units that still used a system without bar codes. Errors dropped dramatically in units with the new system.
- Drug treatment errors, including incorrect medicine dosage, fell by 41%. The rate was 11.5% before the change and 6.8% afterward.
- Transcription errors — mistakes in recording the doctor’s order — occurred with 6% of orders before bar-code use. They were completely eliminated after bar codes were adopted.
- Medicine errors that could have caused serious harm fell from 3.1% to 1.6%. That’s a reduction of more than half.
- Timing-related errors, when a drug is given at least an hour earlier or later than intended, fell by 27%
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