Define deficient knowledge.

• A. Occurs when patient forgets to take medication.
• B. Occurs when patient was given a new prescription and has no previous experience with the medication; also may be applicable if the patient has not received adequate education about the drugs being prescribed.
• C. Only when patient refuses due to side effects.
• D. Only when patient cannot afford medication.

Answer: (B)

Deficient knowledge in this context means the patient lacks information needed to safely and effectively use a medication. It’s not about whether the patient forgets a dose, refuses treatment, or can’t afford it; it’s about gaps in understanding the medication itself. This often shows up when starting a new prescription or when the patient hasn’t received adequate education about the drug. The nurse should assess what the patient knows (purpose, dosing, timing, route, what to do if a dose is missed, potential side effects and interactions, storage) and identify gaps, then provide clear teaching and verify understanding.