Charley is in the hospital visiting a friend who has a broken leg. Charley does not wash his hands after he left the room because his friend is injured but not sick. What did Charley do wrong?

Standard precautions, including hand hygiene, should be followed with every patient, not only people who are known to be sick. Charley should have washed his hands after leaving the room, even though his friend had an injury rather than an illness. Droplet, contact, and airborne precautions are used in particular situations, not for every injury or every visit.

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