Infection control principles · USMLE Step 1

A hospital wants to reduce central line–associated bloodstream infections. Which intervention is most effective?

  1. Routine saline line flushing
  2. Maximal barrier precautions
  3. Using shorter catheter lines
  4. Routine daily line replacement
Show answer and explanation

Correct answer: Maximal barrier precautions

Maximal barrier precautions significantly reduce central line infections. These include sterile gowns, gloves, drapes, and masks.

Difficulty: Medium Question 13 of 20

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