A nurse is reviewing a chart in which a medication error occurred as part of a performance improvement (PI) evaluation. Which notation if observed would indicate a potential contributory factor to the incident based on the concept of nurse fatigue?

1 Clinical response to antibiotic oral medication given by the nurse was not documented.

2 The physician’s order was signed off.

3 The pain assessment profi le before medication being administered was noted as 9 out of 10.

4 The nurse who had administered the medication was working his third shift in a row, which was considered to be an overtime shift.

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