Final answer:
The term used to describe the narrow range of lab values for Dilantin, a seizure medication, is called the therapeutic range, which is between 10 and 20 mcg/ml.
Step-by-step explanation:
The term used to describe the narrow range of lab values for a specific medication like Dilantin is known as the therapeutic range.
The therapeutic range is a term commonly used in pharmacology, referring to the concentration range in which a drug exerts its optimal therapeutic effect without causing undesirable side effect or toxicity.
In the case of the drug Dilantin, a commonly used medication for seizure disorders, the therapeutic range is between 10 and 20 mcg/ml.
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