Massachusetts Pharmacy Technician License Practice Test

What does "IV gtts AD BID PRN" refer to in a prescription?

1. For the eyes

2. For the nose

3. For the ear

4. For the skin

The correct answer is: For the ear

The notation "IV gtts AD BID PRN" in a prescription provides specific instructions about medication administration. The term "gtts" refers to "drops," which indicates that the medication should be administered in drop form. "AD" stands for "auris dextra," which is Latin for "right ear." This explicitly identifies the site of administration as the right ear, making it clear that the medication is intended for use in that area. Additionally, "BID" translates to "twice a day," indicating the frequency with which the medication should be administered. The "PRN" component signifies that the medication should be taken as needed, rather than on a fixed schedule. Collectively, these instructions inform the healthcare provider and the patient on how to appropriately use the medication for ear-related issues. The other choices do not fit the interpretation of the abbreviation "AD," which is specific to the right ear. Other terms like "for the eyes," "for the nose," or "for the skin" would use different abbreviations or terms (e.g., "OS" for the left eye, "NS" for nasal applications, or topical applications indicating skin use).