Airborne Precautions
Airborne Precautions - Related Videos
01:25
Transmission-based Precautions II: Airborne and Protective Environment
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2023
Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions. Airborne precautions: Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
01:26
Standard Precaution
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2023
Standard precautions are the minimum infection control safeguards used while caring for all patients, irrespective of their disease condition. They help prevent the spread of common infectious microorganisms to healthcare workers, patients, and visitors in all healthcare settings. Hand hygiene is the most crucial means to prevent the transmission of disease. Employers are legally required to provide their workers with personal protective equipment (PPE) to minimize exposure or contact with...
09:36
Electrical Safety Precautions and Basic Equipment
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2023
Source: Ali Bazzi, Department of Electrical Engineering, University of Connecticut, Storrs, CT. Electric machines and power electronics experiments involve electrical currents, voltages, power, and energy quantities that should be handled with extreme diligence and care. These may include three-phase AC voltage (208 V, 230 V, or 480 V), up to 250 V DC voltages, and currents that can reach 10 A. Electrocution occurs when an electrical path is established through the body with very low currents...
01:17
Transmission-based Precautions I: Contact, Enteric, and Droplets
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2025
Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet. Contact Precautions: Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
11:13
Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 3. Aerobiology
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Cited by 9 •
2016
As high-consequence pathogens can potentially infect subjects through airborne particles, aerobiology has been increasingly applied in pathogenesis research and medical countermeasure development. We present a detailed visual demonstration of aerobiology procedures during an aerosol challenge in nonhuman primates in an animal biosafety level 4 maximum containment environment.
FAQs
Fit testing confirms that an N95 respirator forms an effective seal against the wearer’s face. Without an appropriate fit, air can bypass the filter through gaps, reducing protection from suspended infectious particles. Healthcare personnel should therefore use a fit-tested N95 or higher-level respirator when caring for patients requiring airborne precautions.
Because some pathogens can remain suspended and travel beyond close-range droplets, protection must address the surrounding air as well as direct contact. Specialized airborne infection isolation rooms help contain exposure, while respirators protect healthcare personnel from inhaling contaminated air. These combined measures reduce opportunities for transmission to staff, visitors, and other patients.
Limiting unnecessary transport reduces the number of settings in which suspended pathogens could expose additional people. When movement is needed for diagnosis or treatment, maintaining the precautions established for the patient remains important throughout the clinical process. This approach supports safer care while reducing avoidable exposure in areas outside the airborne infection isolation room.
The central equipment includes an airborne infection isolation room when available and a fit-tested N95 or higher-level respirator for healthcare personnel. Appropriate eye and body protection are also part of the protective setup. Together, these components address environmental containment and personal exposure, helping maintain safer conditions during diagnosis, treatment, and routine patient care.
Facilities apply these precautions when a patient may have an infection caused by a pathogen capable of remaining suspended in air and traveling beyond close-range droplets. The overview identifies Mycobacterium tuberculosis, measles virus, and varicella-zoster virus as examples. Using the measures in these situations helps protect patients, healthcare workers, and visitors while care proceeds.
These measures allow necessary clinical activities to continue while reducing exposure to infectious particles. Isolation rooms help manage the patient’s environment, and respirators with appropriate eye and body protection reduce occupational exposure. Limiting transport further supports containment. In combination, the precautions contribute to safer diagnosis and treatment and can help reduce transmission during outbreak-control efforts.