Nebulization Dos and Don'ts in the ICU
RECOMMENDATIONS FOR NEBULISATION IN THE ICU SETTING
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DO's Perform nebulisation in an airborne infection isolation room AIIR, commonly called as a negative-pressure room, whenever feasible, or in a portable anteroom. |
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DON'T Follow continuous nebulisation. Intermittent nebulisation (only during inspiration) is more efficient and safe as it minimises aerosol loss during exhalation. |
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DO's Protect ventilators and other mechanical devices (e.g.cough- assist machines) with a high-efficiency viral-bacterial filter. |
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DON'T Allow multiple HCWs inside the ICU (Intensive Care Unit) when nebulisation is being undertaken unless they are wearing a full PPE kit. Restrict entry and exit of HCWs into the ICU to a minimum. |
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DO's standardise all the usage parameters with respect to the nebuliser system. Place the nebuliser in the inspiratory line at a distance of at least 30 cm from the patient and ensure airflow of 6–8 L/ minute. |
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DON'T reuse the equipment and nebuliser accessories unless they have been washed thoroughly using liquid/hospital-grade disinfectants such as isopropanol (70%) or hydrogen peroxide (3%). |
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DO's Wear appropriate PPE with safety accessories such as eye protection, face mask, gloves, face shield, shoe and head covers, and gown to avoid possible contamination through aerosol generation. |
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DON'T Disconnect the humidifier while placing the nebuliser. Only remove the heat and moisture exchanger since its filter can act as a barrier to aerosol delivery. |
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DO's Leave the ICU vacant with the door closed for 30 minutes after the patient has vacated the room post-nebulisation. Sanitise the room after nebulisation before letting others enter. |
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DON'T leave the ICU without cleaning and disinfecting high-touch surfaces (apart from the equipment) with an approved hospital disinfectant. |
References:
- https://www.health.state.mn.us/communities/ep/surge/infectious/airbornenegative.pdf
- https://www.cdc.gov/coronavirus/2019-ncov/hcp/hand-hygiene.html
- Minnesota-CDC guidelines: www.health.state.mn.us, April 2020,
- Govt of Canada: Infection prevention and control for coronavirus disease(COVID-19),
- https://www.health.qld.gov.au/__data/assets/pdf_file/0038/939656/qh-covid-19-Infection-control-guidelines.pdf
- Guidance on infection prevention and control for COVID - https://www.gov.uk/government/publications/wuhan-novel-coronavirus-infection-prevention-and-control
- J Aerosol Med Pulm Drug Delivery 2012; 25:1-14
- Am J Respir Crit Care Med 1997; 156: 3-10
- Thorax 2008; 63(Suppl VI): vi1-vi68; Global Initiative for Asthma (GINA) 2015
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