A nurse manager is performing a record audit as part of the unit's quality improvement program. The nurse should identify that which of the following examples demonstrates the correct use of approved abbreviations in a medical record?

Rationale: A. This option is incorrect because "SU" is not a recognized or approved abbreviation for medication administration and can lead to misinterpretation. Using unapproved abbreviations is a common source of medication errors. B. This option is correct because it clearly states the medication, dosage, route, and administration time using approved abbreviations: "5 mg" (dose), "PO" (by mouth), and "at bedtime" (time). This format reduces ambiguity and follows safe documentation practices. C. This option is incorrect because "QD" (once daily) is considered a high-risk abbreviation and is discouraged by the Joint Commission due to the potential for misreading it as "QID" (four times daily). Using "hs" alone for bedtime is acceptable, but combining it with "QD" introduces redundancy and risk. D. This option is incorrect because using a trailing zero in "5.0 mg" is unsafe. If the decimal point is missed, it could be interpreted as 50 mg, potentially causing a serious medication error. The correct practice is to write "5 mg" without a trailing zero.