Bar-Code Reduces Errors

Photo: A hand scanning the barcode of a product

Bar-code eMAR is a combination of technologies that ensures that the correct medication is administered in the correct dose at the correct time to the correct patient. When nurses use this combination of technologies, medication orders appear electronically in a patient’s chart after pharmacist approval. Alerts are sent to nurses electronically if a patient’s medication is overdue. Before administering medication, nurses are required to scan the bar codes on the patient’s wristband and then on the medication. If the two don’t match the approved medication order, or it is not time for the patient’s next dose, a warning is issued.

Researchers compared 6,723 medication administrations on hospital units before bar-code eMAR was introduced with 7,318 medication administrations after bar-code eMAR was introduced. Having bar-code eMAR technologies in place was associated with reductions in errors related to the timing of medications, such as giving a medicine at the wrong time, and non-timing medication administration, such as giving a patient the wrong dose.

The researchers documented a 41 percent reduction in non-timing administration errors and a 51 percent reduction in potential drug-related adverse events associated with this type of error. Errors in the timing of medication administration, meaning a patient was given medication an hour or more off schedule, fell by 27 percent. No transcription errors or potential drug-related adverse events related to this type of error occurred.

The researchers conclude that using bar-code technology and an electronic medication administration record together can be an important intervention to help achieve medication safety. This combination of technologies can make the delivery of hospital care safer, the scientists argue. However, hospitals need the right set of resources and human talent to deploy these technologies successfully, so more research is needed to identify ways to implement them in the most cost-effective way, they add.; Source: Agency for Healthcare Research and Quality (AHRQ)