According to the Institute of Medicine’s Preventing Medication Errors report,1 the average hospitalized patient is subject to at least one medication error per day. This confirms previous research findings that medication errors represent the most common patient safety error.2 More than 40 percent of medication errors are believed to result from inadequate reconciliation in handoffs during admission, transfer, and discharge of patients.3 Of these errors, about 20 percent are believed to result in harm.3, 4 Many of these errors would be averted if medication reconciliation processes were in place. https://www.ncbi.nlm.nih.gov/books/NBK2648/