NREMT scene size-up and safety practice test: free drill and guide
Scene size-up and safety is 15-19% of the NREMT EMT exam since April 2025. It tests what you do before you touch a patient: decide whether the scene is safe, choose your PPE, read the mechanism of injury or nature of illness, count patients and call for resources. Start with the free 12-question drill below.
- 15-19%
- of the EMT exam
- 12
- free drill questions
- 1st
- step on every call
Last checked · Range from the NREMT's EMT handbook
Free scene size-up drill: 12 original NREMT-style questions in 12:00, the real exam's pace. Your score, your time per question and the question that cost you most, explained. No sign-up.
Free NREMT Scene size-up and safety drill · real section pace
12
questions
12 min
time limit
Free
instant score
By the LifeScore Editorial Team · Updated · How we check facts · How this is scored
How much of the NREMT is scene size-up?
Up to about one question in five, and the principle behind it (scene first) decides questions in every other domain too.
| Scene Size-Up and Safety | 15-19% of the EMT exam, about 11 to 23 questions across the 70 to 120 rangePublished by the ownerNREMT, EMT candidate handbook: about the examination |
|---|---|
| What it covers | Scene hazards, PPE, mechanism of injury or nature of illness, number of patients and the resources to callPublished by the ownerNREMT, "Emergency Medical Technician examination specifications" (test plan, PDF) |
| On our mocks | 12 of 70 questions in every mock, mixed in with the other domainsLifeScore |
What does scene size-up and safety cover?
Five things to decide in the first moments of a call.
Scene safety
Violence, traffic, fire, electricity, unstable structures and when to stage and wait for law enforcement or fire.
Standard precautions and PPE
Gloves, eye protection, masks and N95s, gowns; cleaning and exposure reporting.
Hazardous materials
Recognizing a hazmat scene, staying uphill and upwind, decontamination before treatment.
Mechanism of injury and nature of illness
Frontal, side, rear and rollover crashes, falls, penetrating trauma; clues in the room such as medications or oxygen.
Patients and resources
Counting patients, calling for more units, ALS, fire or a helicopter early.
What do scene size-up questions look like?
A scene with a problem and four actions; the right one keeps you and your crew safe. The first two are worked.
NREMT-style question 1 · Scene safety
You are dispatched to a crash and see a downed power line lying across the car. The driver is awake. What should you do?
- AStay clear and wait for the power company to make it safe
- BReach in to check the driver's pulse
- CTell the driver to step out quickly
- DMove the line with a dry wooden pole
Worked answer
A: Stay clear and wait for the power company to make it safe. A downed line can energize the car and the ground. Only the utility can make it safe; the driver should stay inside.
The trap: Wanting to rescue the patient right away.
NREMT-style question 2 · Hazardous materials
You arrive at a tanker spill with a placard and a strong smell. Where should you stage?
- ARight next to the tanker
- BDownwind so fumes blow away from the truck
- CDownhill so you can see the spill
- DUphill and upwind at a safe distance
Worked answer
D: Uphill and upwind at a safe distance. Gases and liquids travel downhill and downwind. Stage uphill and upwind and use the placard to identify the substance.
NREMT-style question 3 · PPE
A patient has a cough, fever and suspected tuberculosis. What respiratory protection should you wear?
- AA surgical mask
- BGloves only
- CA fit-tested N95 respirator
- DNo mask if you stay 3 feet away
Show the answer
C: A fit-tested N95 respirator. Tuberculosis is airborne; an N95 filters the particles a surgical mask does not.
NREMT-style question 4 · Mechanism of injury
An unrestrained driver hit a tree head-on and the windshield is starred. What injury should you suspect?
- AHead and neck injury
- BA foot injury only
- CAn isolated wrist injury
- DNo injury, since the airbag deployed
Show the answer
A: Head and neck injury. A starred windshield means the head struck it: suspect head and spine injury.
Written for this page as worked examples. None is a real exam question, and none is in any mock or drill.
Scene first, on every call and every question
Twelve questions show the gap. 4 more scene size-up drills and 8 full mocks close it.
The NREMT Pass Pack gives you 8 full mocks on the real clock, 20 drills of 12 questions for the sections that cost you points, and a predictor that turns your mocks into the odds of reaching your target. One payment, no subscription, and your free score stays free.
Prep courses for these tests usually cost $19 to $129. The NREMT Pass Pack is US$39 (£29), once.
- 8
- timed mocks
- 20
- topic drills
- 1
- score predictor
Which injuries go with which mechanism?
The mechanism tells you what to look for before you find it.
| Mechanism | Suspect |
|---|---|
| Frontal crash, down-and-under | Knee, femur and hip injuries |
| Frontal crash, up-and-over | Head, neck, chest and abdomen |
| Side impact (T-bone) | Ribs, pelvis and neck on the struck side |
| Rear impact | Neck injury, especially with a low headrest |
| Rollover or ejection | Multiple and serious injuries; high suspicion |
| Fall over 20 feet in an adult | Significant mechanism; consider spine and internal injury |
| Penetrating trauma | Injury along the path; look for an exit wound |
What rules win scene size-up questions?
Four rules.
Your safety first
Then your crew, then bystanders, then the patient. Never enter an unsafe scene.
PPE before contact
Choose it for what you expect to meet: gloves always, more for blood, airborne or splash risks.
Call early
If you will need more units, ALS or fire, call before you are busy with patients.
Let the mechanism guide you
A significant mechanism raises your suspicion even when the patient looks well.
What traps are set in scene size-up questions?
Brave-sounding answers.
- Entering a violent scene before law enforcement secures it.
- Approaching a hazmat scene downhill or downwind.
- Treating a contaminated patient before decontamination.
- Assuming an airbag means no injury.
- Waiting to call for more units until you have assessed everyone.
How do I study scene size-up?
Three short sessions cover it.
Day 1
20 min
Free drill above; note the hazards you missed.
Day 2
20 min
PPE and hazmat: which protection, where to stage.
Day 3
20 min
Mechanism of injury patterns and when to call for resources.
Frequently asked questions
How many scene size-up questions are on the NREMT?
What is the first step of every call?
Should an EMT enter a crime scene?
Do these questions follow my local protocols?
Make scene safety automatic
20 topic drills (4 for scene size-up), 8 full mocks and a predictor, in one payment with no subscription.
The NREMT Pass Pack gives you 8 full mocks on the real clock, 20 drills of 12 questions for the sections that cost you points, and a predictor that turns your mocks into the odds of reaching your target. One payment, no subscription, and your free score stays free.
Prep courses for these tests usually cost $19 to $129. The NREMT Pass Pack is US$39 (£29), once.
- 8
- timed mocks
- 20
- topic drills
- 1
- score predictor