It is the prevention of the transmission of small particle residue 5 micron or smaller. It can be prevented by using a mask. You have to remember that even you are more than 3 feet away from the patient you still can get it.
Airborne diseases like meningitis, Tuberculosis, and chicken pox are spread when droplets of pathogens are expelled into the air due to coughing, sneezing or talking. Patients with airborne diseases should be isolated and not to be shared with other patients in the room.
The equipment should be used exclusively for the particular patient. Use particulate filter mask when you are caring for a TB patients. You wear a mask if you are 3 feet away from the patient but if you are just opening the patient’s room no need to wear a mask. But all the visitors should wear mask even they only plan to be 3 feet away from the patient. It is not reliable, the tend to forget it.
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