Which client statement indicates understanding of how to avoid spreading tuberculosis?

The statement about always covering the mouth and nose when sneezing demonstrates a clear understanding of how to prevent the spread of tuberculosis. Tuberculosis (TB) is an airborne infectious disease that spreads through droplets released when an infected person coughs, sneezes, or talks. By covering the mouth and nose, an individual significantly reduces the number of infectious droplets that are released into the air, thereby decreasing the risk of transmission to others.

It's also essential to understand that while isolating oneself from family and disposing of old clothing may seem like precautions, they do not directly address the primary mode of TB transmission. Isolating oneself can be helpful in certain situations, but it is not a practical or necessary measure for all cases unless specifically advised by a healthcare provider. Similarly, while using paper tissues to prevent droplet spread is a relevant practice, the critical focus is on the immediate action of covering the mouth and nose to stop airborne transmission at the moment it would occur. Both these statements contribute to understanding infection control, but the emphasis on covering the mouth and nose is the most direct and effective method to avoid spreading tuberculosis.