A nurse is preparing an in-service program about preventing medication errors when transcribing a prescription. The nurse is using a dosage example of two tenths of a milligram. Which of the following examples should the nurse use to show appropriate transcription of this dosage?

Rationale: Option A (2 mg) is ten times the correct dose. Option B (0.20 mg) is acceptable in some cases, but trailing zeros are discouraged because they can lead to tenfold dosing errors if the decimal point is missed. Option C; Correct transcription of a decimal less than 1 should include a leading zero to prevent misreading (e.g., 0.2 mg). Option D (2.0 mg) is incorrect as it represents a different dose.