Pharmacological and Parenteral TherapiesQuestion 735 of 2368

Which peripheral IV catheter size is often preferred for a frail older adult?

  1. 14 gauge
  2. 16 gauge
  3. 18 gauge
  4. 22 gauge
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Correct answer: 22 gauge

Frail older adults and children have smaller vasculature, so a 22-gauge catheter is often preferred.

Source: Nursing Advanced Skills (Open RN, Chippewa Valley Technical College, 2023), Initiate IV Therapy: Catheter Size and Type Selection. Licensed under CC BY 4.0.

Practice the topic "Pharmacological and Parenteral Therapies"

Questions last reviewed: 18 October 2026