Clinical significance according to the motive for the intervention
| Type of intervention | Clinical significance | N | % |
|---|---|---|---|
| Economic saving | No error | 0 | 0.0 |
| Documented drug allergy | Serious | 1 | 2.5 |
| Clarification of the physician's order/request for information | No error | 5 | 12.5 |
| Therapeutic duplication | Significant | 1 | 2.5 |
| Dose error: resulting in potentially toxic concentrations | Serious | 3 | 17.5* |
| Dose error: 1.5–10 times higher than normal (if drug had a normal therapeutic range) | Significant | 1 | |
| Dose error: 1.5–4 times higher than normal (if drug had a narrow therapeutic range) | Significant | 0 | |
| Dose error: 10 times higher than normal (if drug had a narrow therapeutic range) | Potentially lethal | 1 | |
| Dose error: 10 times higher than normal (if drug had a normal therapeutic range) | Serious | 1 | |
| Dose error: 4–10 times higher than normal (if drug had a narrow therapeutic range) | Serious | 1 | |
| Dose error: very low in non-potentially life-saving drugs | Significant | 3 | 7.5 |
| Dose error: very low in potentially life-saving drugs | Potentially lethal | 0 | |
| Repackaging error/physician's order led to error of dispensing | Serious | 0 | 0.0 |
| Pharmaceutical form inappropriate or not available | Minor | 2 | 5.0 |
| Illegible, ambiguous or incomprehensible abbreviations | Minor | 0 | 0.0 |
| Non-adherence to hospital policy | Minor | 0 | 0.0 |
| Incomplete information in the physician's order | Minor | 1 | 2.5 |
| Interaction: clinically significant, requiring follow-up | Significant | 2 | 5.0 |
| Interaction: combination contraindicated | Potentially lethal | 0 | |
| Inappropriate dosage interval | Significant | 6 | 15.0 |
| Drug not supplied by company | No error | 0 | 0.0 |
| Drug not indicated (indication not studied or with no evidence of use) | Serious | 0 | 0.0 |
| Drug not included in guidelines | Minor | 0 | 0.0 |
| Omission of a drug from the physician's order (indication not treated) | Significant | 3 | 7.5 |
| Omission of a preventive measure to avoid adverse reactions | Significant | 1 | 2.5 |
| Omission of testing in drugs with possible hypersensitivity | Serious | 0 | 0.0 |
| Adverse reaction with a threat to the life of the patient | Potentially lethal | 1 | 2.5 |
| Adverse reaction related to precautions or contraindications | Serious | 2 | 5.0 |
| Sequential therapy | Minor | 0 | 0.0 |
| Route of administration that could lead to mild toxicity | Minor | 1 | 2.5 |
| Route of administration that could lead to severe toxicity | Serious | 2 | 5.0 |
| Information on the administration of parenteral/oral drugs | Significant | 2 | 5.0 |
*Interventions related to errors involving drug overdose.