What does PRN mean concerning medication?

In the context of medication, PRN stands for "pro re nata," a Latin phrase meaning "as needed." This term indicates that a medication is not scheduled for regular administration but can be taken at the discretion of the individual or caregiver based on specific symptoms or needs.

Understanding this, the correct answer highlights that PRN medications must be prescribed by a doctor, as only a licensed healthcare provider can determine when this type of medication is appropriate for a patient based on their condition and medical history. A PRN order ensures that the patient has the legal and medical backing to take the medication as needed, rather than at regularly scheduled intervals.

The other options do not accurately reflect the meaning or implications of PRN. For instance, saying that frequent medication usage is recommended does not align with the nature of PRN, which is used sparingly, depending on the situation. Claiming the medication must be delivered immediately also misrepresents PRN, as it can be taken at varying intervals depending on the individual's needs. Lastly, stating it can only be taken if prescribed does not capture the broader context of PRN; while it is true that PRN medications must be prescribed, their usage is determined by the needs of the patient rather than a strict schedule.