RN Exam Practice
Pharmacological and Parenteral TherapiesQuestion 582 of 2368

A nurse is preparing to give intravenous phenytoin to an adult. What is the maximum rate of infusion?

  1. 100 mg per minute
  2. 150 mg per minute
  3. 50 mg per minute
  4. 200 mg per minute
Show answer

Correct answer: 50 mg per minute

Faster infusion risks severe hypotension and cardiac arrhythmias, so cardiac monitoring is also needed.

Source: Nursing Pharmacology, 2nd edition (Open RN, Chippewa Valley Technical College, 2023), Central Nervous System: Phenytoin. Licensed under CC BY 4.0.

Practice the topic "Pharmacological and Parenteral Therapies"

Questions last reviewed: 18 October 2026