In a group of studies about medical errors in family medicine, the five error types most often observed and reported by U.S. family physicians were: (1) errors in prescribing medications; (2) errors in getting the right laboratory test done for the right patient at the right time; (3) filing system errors; (4) errors in dispensing medications; and (5) errors in responding to abnormal laboratory test results. "Errors in prescribing medications" was the only one of these five error types that was also commonly reported by family physicians in other countries.