Omissions | Medication in patient's medication history not prescribed on medication chart, with no reason documented in patient chart | Every medication in patient's medication history checked against medication chart—omissions from medication chart noted | Whether or not medication is prescribed |
Prescribing errors | Anomaly in drug name, strength, dose, frequency or route, with no documentation in patient chart | Every medication in patient's medication history checked against medication chart—anomalies noted | Whether or not prescription is accurate in terms of drug name, strength, dose, frequency and route |
Communication errors | Unclear prescription in terms of name, route, dose, frequency, slow release medication notification or intermittent order prescribing | Every prescription written checked using a validated tool—unclear prescribing noted, as agreed by both researchers | Whether or not prescription is safe for administration purposes |