A nurse is observing staff implementation of infection control measures. Which of the following observations should the nurse report to the nurse manager for potential corrective action?

An unlicensed assistive personnel enters the room of a client on contact precautions without wearing a mask.

A student nurse removes a disposable gown in the doorway when leaving the room of a client on protective isolation.

A physical therapist wears a surgical mask when entering the room of a client on airborne precautions.

A person from environmental services enters the room of a client on droplet isolation without donning a disposable gown.