Dispatch reports an overturned tanker releasing an unknown vapor beside the highway. Where should the ambulance initially stage?
A. Upwind and uphill outside the suspected isolation area
B. Downwind where the vapor can be seen clearly
C. Beside the tanker so equipment is close
D. At the lowest nearby point to avoid traffic
Source: Source section/heading: ERG 2024, initial response and protective-action guidance; approach cautiously from upwind, uphill, or upstream and isolate the area
Dispatch reports screaming and an active assault inside a residence. Police have not arrived. What should the EMT crew do?
A. Enter quietly and attempt verbal de-escalation alone
B. Park in the driveway with warning lights off
C. Stage at a safe location until law enforcement secures the scene
D. Ask a neighbor to enter and report whether weapons are present
Source: Source section/heading: EMS Worker Safety, potential violence and de-escalation; scene policies and resources to prevent EMS worker assault
At a nighttime highway crash, where should the EMT perform patient care after fire personnel establish a protected work area?
A. In an open traffic lane to shorten the carry distance
B. Inside the designated protected area while wearing required high-visibility PPE
C. Between moving traffic and the damaged vehicle
D. Beyond the warning devices where approaching drivers first change lanes
Source: Source section/heading: Safety Guidelines for Emergency Response Workers; recognition of physical and transportation hazards and use of hazard-appropriate protective equipment
A patient lies near a downed electrical line that is arcing against a vehicle. What is the EMT's first action?
A. Keep clear and request qualified electrical hazard control
B. Approach only from the side opposite the visible arc
C. Spray the line with water to stop the arcing
D. Pull the patient away using a dry blanket
Source: Source section/heading: Safety Guidelines for Emergency Response Workers; electrical hazards, hazard recognition, and responder protection before entry
A coughing, febrile patient will be assessed at close range, and dispatch reports possible respiratory infection. What should guide the EMT's PPE choice?
A. Whether the patient personally requests that PPE be omitted
B. The anticipated exposure routes and the agency's infection-control procedure
C. The shortest estimated transport time
D. Whether gloves are available in the patient's home
Source: Source section/heading: EMS Worker Safety, infectious-illness exposure and employer provision and use of personal protective equipment
