Which transmission-based precaution is necessary for a patient with Mycoplasma pneumonia?

The appropriate transmission-based precaution for a patient with Mycoplasma pneumonia involves wearing a surgical mask within three feet of the patient. Mycoplasma pneumonia is primarily spread through respiratory droplets when an infected person coughs or sneezes. Therefore, using a surgical mask helps to protect healthcare workers and others from inhaling these droplets, thereby reducing the risk of transmission.

This precaution is particularly important in scenarios involving close contact, as the infectious particles can be aerosolized and land on individuals nearby. Wearing a mask creates a barrier that significantly decreases the likelihood of airborne transmission, making it a critical component in preventing the spread of this type of pneumonia in healthcare settings.

While other options might seem relevant at first glance, they do not specifically cater to the nature of Mycoplasma pneumonia's transmission. Thus, wearing a mask is the essential and most effective precaution in this situation.