Infection control principles · USMLE Step 1

A nurse touches a contaminated wound and then adjusts her face mask without performing hand hygiene. Which type of transmission is most likely?

  1. Droplet respiratory transmission
  2. Airborne particle transmission
  3. Indirect contact transmission
  4. Self-inoculation via hands
Show answer and explanation

Correct answer: Self-inoculation via hands

Touching the face with contaminated hands can introduce pathogens to mucous membranes. This is a common mechanism of self-inoculation.

Difficulty: Medium Question 6 of 20

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