Add an addendum to the documentation explaining the error and the correct medication dose.

Accurate and timely documentation is essential for providing quality care and maintaining legal and ethical standards. In this situation, the nurse should add an addendum to the documentation, clearly explaining the error made in documenting the medication dose and providing the correct information. This ensures transparency, maintains the integrity of the record, and allows for accurate communication among healthcare providers.

• Option a (leaving the error as is) is inappropriate as it compromises the accuracy and reliability of the patient's health record, which may impact future care decisions.

• Option b (altering the documentation) is unethical and potentially illegal, as it involves falsifying information in the patient's record.

• Option d (reporting the error to the supervisor or appropriate authority) may be necessary, but the immediate action should be to address the error in the documentation itself.