What is the nurse's responsibility in an unusual situation when she administers wrong medicine orally?

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E6 Nursing Fundamentals Potter Perry 12e Part 3 p. 146-148
E6 Pharmacology Nursing Lilley 11e Part 1 p. 88-90
Practise the full BCCL kharkhanda Staff Nurse - 2015
Attempt every question from this paper in a timed mock, then review the full solution for each one.