What type of mask should you place on a patient who is suspected or known to have tuberculosis (TB) before transport?

In the case of a patient suspected or known to have tuberculosis (TB), it is crucial to use an N-95 mask. This type of mask is specifically designed to filter out at least 95% of airborne particles, including those that may carry the bacteria causing TB. TB is primarily spread through the air when an infected person coughs or sneezes, releasing droplets that can be inhaled by others. The N-95 mask helps protect healthcare providers and others around the patient from inhaling these infectious agents.

While a surgical mask might reduce the amount of respiratory droplet exposure, it does not provide the same level of protection as an N-95 mask, particularly for airborne illnesses like TB. Cloth masks and face shields are not appropriate for such situations as they do not provide adequate filtration of airborne pathogens and may not serve as a reliable barrier against the bacteria. Therefore, using an N-95 mask is the most effective measure to ensure safety during the transport of a patient with TB.