What term is used for a medication order given on an "as needed" basis for specific signs and symptoms?

The term used for a medication order given on an "as needed" basis for specific signs and symptoms is referred to as a PRN order. This abbreviation stands for "pro re nata," a Latin phrase meaning "as needed" or "as the situation arises." PRN orders are commonly utilized in clinical settings to allow healthcare providers to administer medications only when a patient demonstrates certain symptoms or requires additional relief.

For example, a patient might have a PRN order for pain medication that they can take every few hours as needed, depending on their level of discomfort. This contrasts with routine medication orders that are taken at set times, regardless of symptoms.

In addition, other terms mentioned in the options refer to different concepts. A unit dose denotes a specific package or amount of medication meant for a single administration. A prescription is a formal order for a specific medication that must be filled by a pharmacy. Floor stock refers to medications that are stocked on the nursing unit and can be administered without a special order, typically for routine treatment. Understanding these distinctions is key in pharmaceutical practice, particularly regarding how medications are ordered and administered.