Electric Vehicle Fires
According to the LCFR Field Guide, what are the three types of threats associated with Electric Vehicle Fires?
1. Fire/Explosion (thermal runway & stranded energy)
2. Electric Shock (exceed 400+ Volts)
3. Inhalation Threats (CO, CO2, ethane, hydrogen, Hydrogen Fluoride (HF), Dimethyl Carbonate, Ethylene, Methane)
How far should the first in suppression unit position from the scene?
100 feet
What is the standard response for all metrorail incidents?
5 engines
2 Trucks
1 Rescue
1 BLS
2 BCs
1 EMS Sup
1 Safety
What are the Signs & Symptoms of Stroke/TIA
1. Mental Status Change from baseline
2. Focal Neurological deficit affecting speech, vision, movement, sensation, coordination
3. Headache
4. Abnormal Cincinnati Stroke Scale (Facial droop, arm drift, speech abnormality)
What are some of the signs and symptoms of heat emergencies?
1. Skin changes variable in heat emergency (dry/moist, flushed/Pale)
2. Nausea
3. Muscle Cramps
4. Mental Status Changes
5. Hypotension or Shock
6. Seizures
As the 1st engine arriving on scene of a electric vehicle fire, what are your responsibilities?
1. 360 report
2. Occupant Status
3. Meter with 4 gas & TIC to locate battery location and gases.
How far should the second and third suppression unit stage from the call?
at least 300 ft.
If you need to go onto the tracks for a call, who do you call to ensure that the power is shut down?
ROCC Liason
You have been dispatched for a stroke call. As an EMT-B what can you do for the patient.
1. Perform Cincinnati Stroke Scale
2. Blood Glucose Testing
3. Administer oral glucose if glucose is below 70
For a hypothermic arrest patient, how long should you check a pulse for?
1 minute
For an electric vehicle fire how many feet should the Hot Zone Be?
75 feet
Before entering the structure you must provide:
1. Meter readings at front door
2. Meter readings at back door
3. Occupant status
4. Mode of Operations
5. Location of gas meter
Chain Markers are the distance from the HUB (Gallery Place Tysons) and can be written as N2 Silver 1664+00.
What does that mean?
N Line, Track 2, Silver Line, 166,400 feet from HUB
What are the performance indicators for Stroke/TIA
1. Time of onset or time last known well is documented
2. Cincinnati stroke scale performed and documented
3. Blood Glucose documented and repeated if treated
4. Prompt transport within 10 minutes from arriving on scene
What are the signs and symptoms of the below:
1. Heat Cramps
2. Heat Exhaustion
3. Heat Stroke
1. Heat Cramps: muscle cramping secondary to dehydration not associated with an elevated temperature
2. Heat Exhaustion: dehydration, salt depletion, dizziness, fever, weakness, headache, cramping, nausea and vomiting. Vital signs usually consist of tachycardia, mild hypotension and an elevated temperature.
3. Heat Stroke: Severely elevated temperature and altered mental status
For a tractor trailor fire, how large is the hot zone?
1/3 mile
Hazmat should be requested for:
2. Leaks involving the container itself
3. Readings over a large area
What unit operates within the recon group as the Safety Function?
1st Truck
You arrive on scene of a stroke call, what should you determine from a family member on scene?
1. Has the patient had major surgery, heart attack or stroke within the past 3 months
2. Did the patient have a seizure at the onset of the stroke symptoms
3. Does the patient have a history of intracranial hemorrhage, hemorrhagic stroke, brain aneurysm or brain tumor
4. Has this patient had any serious bleeding problems within the last 3 weeks
5. Is the patient on blood thinners
True or False: Measurement of oral, axillary, temporal and tympanic temperature is unreliable and may give a falsely low temperature in heat illness?
True
When fighting an lithium ion battery fire you are exposed to thermal runway. What is the next step once you have put out the fire?
Decon, document exposure, send PPE out for cleaning.
Provide the Physical Properties for Propane:
1. Smell and color
2. LEL
3. UEL
4. Flash Point
5. Expansion Ratio
6. Behavior
1. Colorless and Odorless
2. LEL: 2.1%
3. UEL: 9.5%
4. Flash Point: -156 F
5. Expansion Ratio: 270:1
6. Behavior: heaving than air, collects in low lying areas.
What unit is responsible for water supply for all metrorail incidents?
3rd arriving engine
What can paramedics do that an emt-b cannot when treating a patient for a stroke/TIA?
1. Initiate IV Access
2. Initiate cardiac monitoring
3. Administer Dextrose 10% 25g IV/IO titrated to effect OR Dextrose 50% 12.5g slow IV/IO push
For a heat emergency patient, what can an EMT-B do under standing orders?
1. Determine temperature of the patient
2. remove from heat and remove clothing
3. Use evaporative cooling and increase air flow around patient
4. cold water immersion