Summary of the errors observed which were considered to be potentially lethal
| Error description | Category | Prescriber grade | Ward area | Admission/discharge |
|---|---|---|---|---|
| Gliclazide 400 mg prescribed when 40 mg needed | 1- Dosing errors | Newly qualified | Medicine | Discharge |
| Digoxin 625 µg prescribed when 62.5 µg needed | 1- Dosing errors | Newly qualified | Medicine | Discharge |
| Oxycodone 500 mg prescribed: overdose | 1- Dosing errors | Mid grade | Surgery | Admission |
| Methotrexate prescribed daily, not weekly | 1- Dosing errors | Junior | Medicine | Admission |
| Doxazocin prescribed; had been stopped by general practitioner due to angioedema | 3. Allergy status missing/significant allergy | Junior | Medicine | Admission |
| Phenytoin dose of 300 mg daily incorrectly prescribed as 800 mg | 1- Dosing errors | Newly qualified | Medicine | Discharge |
| Midazolam intravenous for sedation: overdose | 1- Dosing errors | Mid grade | Unknown | Admission |
| Amiodarone loading dose of 200 mg three times daily continued as a regular dose | 1- Dosing errors | Other | Surgery | Discharge |
| Enoxaparin prescribed 1 mg/kg once daily instead of 1 mg/kg twice daily for a patient with acute coronary syndrome | 1- Dosing errors | Mid grade | Medicine | Admission |