covid-19 an overview …...flow chart limit equipment • one gurney • one transport unit •...
TRANSCRIPT
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COVID-19 An Overview
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APPRECIATION• Dr. Larry Fontanilla,
Thurston County MPD• Thurston County Fire
Agencies
• Dr. Tom Rea, King County MPD
• Dr. Michael Sayre, Medical Director Seattle Fire Department
• Staff at King County Public Health
• Centers for Disease Control and Prevention
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OBJECTIVES
• Background• Epidemiology• Patient Screening• PPE• Treatment• Transportation • Decontamination• Exposure
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BACKGROUND
• Wuhan City • Population: 11 million• Capital city of Hubei province• City Flower: Plum Blossom
• Hubei Province• Population: 58.5 million• POI: Wudang Mountains, Yellow
Crane Tower, and Hubei University • Hubei = “north of the lake”
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ORIGIN STORY
Betacoronaviruses
• SARS-CoV-2 (which causes COVID-19)
• MERS-CoV
• SARS-CoV
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Where do we get our information?
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EPIDEMIOLOGY
Spectrum of disease (N = 44 415)• Mild: 81% (36 160 cases)
• Severe: 14% (6168 cases)
• Critical: 5% (2087 cases)
Age distribution (N = 44 672)• ≥80 years: 3% (1408 cases)
• 30-79 years: 87% (38 680 cases)
• 20-29 years: 8% (3619 cases)
• 10-19 years: 1% (549 cases)
• <10 years: 1% (416 cases)
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Initial Overall CaseFatality Rate = 2.3%
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IMPORTANTMORTALITY STATISTIC
<1% mortality in those without comorbidities
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CASE FATALITY vs. TRANSMISSION
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TRANSMISSION
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CLINICAL PRESENTATION
Fever = 83-98%
Dry Cough = 76-82%
Fatigue and myalgias = 11-44%
Other symptoms reported:
HeadacheSore ThroatAbdominal PainDiarrhea
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PATIENT IDENTIFICATION (SCREENING)
COVID-19 Identification Algorithm
Clinical Features & Epidemiologic Risk
Fever* and symptoms of lower respiratory illness (e.g., cough, difficulty breathing)*>100.5 °F
AND In the last 14 days before symptom onset, a history of travel outside of the US.
– or –In the last 14 days before symptom onset, contact with a person who is under investigation or confirmed infection for COVID-19.
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TCOMM NOTIFICATION
Positive screenings by TCOMM will be notified to providers in the following manner:• The positive screen will be placed in the
MDT feed for the incidentAND• The positive screen will be indicated
over the air via the following phrase:
“CD Precautions Advised”
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PPE•Mask•Eyewear•Gloves•Gown
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N95 MASKS
Until Otherwise Notified, N95 Masks shall be single patient use under the following conditions:
• The patient has screened positively for potentially having COVID-19
• The patient is presenting with fever or respiratory symptoms, but has screened negative for COVID-19
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PATIENT CONTACT AND TRANSPORT FLOW CHART
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LIMIT EQUIPMENT • One gurney• One transport unit• Consider necessity of AED, ALS monitor, jump
bags, drug kits, etc.
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LIMIT PERSONNEL SEE PDF FLOWCHART FOR PATIENT CONTACT AND TRANSPORT
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TREATMENT DOs• Hand a surgical mask to any patient
you suspect of having an infectious disease of respiratory origin
• For those patients you suspect of having COVID-19, administer supportive O2 therapy via NRB mask
• Limit therapies to those that are absolutely necessary
• If advanced interventions are necessary for respiratory support, consider iGel placement if clinically appropriate. Do not withhold life saving interventions when appropriate. Ultimately, use good judgement
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HIGH RISK TREATMENTSConsider the risk of aerosol generating procedures such as:
• INTUBATIONS• NON-INVASIVE VENTILATION
(BiPAP®)• SUCTIONING• ADMINISTRATION OF NEBULIZED
MEDICATIONSTHESE ARE CONSIDERED HIGH RISK PROCEDURES
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TRANSPORTATION
Only ONEtransporting unit is to be used for
any positively screened
potential COVID-19 patient.
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TRANSPORTATION
Run vents/exhaust fans during transportation
Driver should maintain N95 Mask and eyewear
When parked and on scene, open rear doors in the event the patient needs an aerosolizing procedure performed and weather permits
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DECONTAMINATION
Products approved for use:
• Cavi Wipes• Stryker Wipes• Cetylcide Spray• Bleach Solutions• Lysol• Other agents
approved for disinfection of “coronaviruses”
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NON-TRANSPORTING UNIT
PPE disposal after patient contact
• Proper disposal of PPE• Use alcohol-based hand sanitizer• Change clothing • Wash hands when available
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TRANSPORTING UNIT
• Decontaminate surface areas and equipment with approved cleaning agents
• Use alcohol-based hand sanitizer• Change clothing • Wash hands when available
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What is an exposure?
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How to differentiate
between quarantine
and isolation?
QUARANTINE• Asymptomatic • Lower risk of transmission• “Self-quarantine” at home• Monitor with Thurston County Public Health and Social
Services (TC-PHSS) for symptoms• Report signs and symptoms immediately to TC-PHSS
ISOLATION• Symptomatic
• High risk of transmission • “Self-isolate” at home pending public health investigation • Current guidance from CDC and DOH are that patients must
have 2 negative tests to be removed from isolation
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If you are wearing appropriate PPE (N95 mask, eyewear, gloves, and gown), you are not exposed
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EXPOSURE
LOW RISK• ≥ 6 feet from the patient
• Gown failure• Glove failure
These do not constitute the need for quarantine
HIGH RISK• ≤ 6 feet from the patient
• Eyewear failure• N95 mask failure
• Broken elastic band that resulted in removal• Involuntary removal within 6 feet of patient
These do constitute the need for quarantine
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NOTIFICATION
In the event that appropriate PPE is not worn and a “high risk” exposure is experienced:
Notify patient’s destination hospital that a provider exposure has occurred
Following hospital notification, immediately notify your command
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QUARANTINE (PART 1)
The provider will be placed in quarantine until one of the following occurs:
• The hospital will run tests on any pathogens that are able to be identified (i.e. influenzas, pneumonias, other strains of the coronavirus, etc.) – NOT SARS-CoV-2 (COVID-19)…see next slide.
• If any test returns positive, quarantine is no longer warranted
• Provider is authorized to immediately return to work
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QUARANTINE (PART 2)
• Thurston County Public Health and Social Services, along with the DOH, will authorize testing of the exposed provider
• If the SARS-CoV-2 (COVID-19) test comes back negative, quarantine is no longer warranted
• Providers that return negative results will immediately be authorized to return to work
• Providers should continue to monitor for signs/symptoms over the next 10 days
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QUESTIONS
Command should be contacted for any questions or reports related to exposures
The on-call duty officer with public health can be reached through TCOMM by requesting a callback from the “on-call public health duty officer” – be prepared to provide TCOMM with a callback phone number