Which abbreviation signifies a schedule of 'twice a day'?

The abbreviation that signifies a schedule of 'twice a day' is "bid," which stands for "bis in die" in Latin. This term directly translates to "twice a day." In clinical practice, when a medication is prescribed to be taken bid, it means that the patient should take it two times daily, often spaced evenly apart.

Understanding medication abbreviations is critical in nursing, as it helps in ensuring the correct administration of medications and adhering to prescribed dosages. Knowledge of these abbreviations contributes to patient safety and effective communication among healthcare providers.