Final answer:
The correct documentation of a drug dosage requires a precise amount and a clear unit of measure such as options (b) 5 mg, (c) 2.0 mg, and (d) 25.0 mg, while option (a) 0.10 mg is less ideal due to the unnecessary trailing zero.
Step-by-step explanation:
The proper way of documenting a drug dosage must include both a precise amount and a clear unit of measure to avoid confusion or medical errors. It is critical in the medical field to specify drug dosages accurately. Options (b) 5 mg, (c) 2.0 mg, and (d) 25.0 mg all represent proper ways of documenting drug dosages as they use correct unit abbreviations and provide precise measurements.
Option (a) 0.10 mg can be considered less ideal because the trailing zero is not necessary for the significant figures; however, it is still factually correct and would not typically cause an issue in a clinical setting. The ability to convert between units, such as knowing that 0.2 g equals 200 mg, and understanding the number of significant figures in a reported quantity, are both fundamental skills in healthcare. Without clear units and accurate numbers, a drug dosage could be ineffective or even harmful.