100+ Free ABEM EMS Practice Questions

Pass your ABEM Emergency Medical Services Subspecialty Certification exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately

74% Pass Rate

100+ Questions

100% Free

1 / 10

Question 1

Score: 0/0

An EMS system uses a tiered response model. Which statement best describes this design?

BLS units respond first for triage and call for ALS only when advanced interventions are indicated

All 911 calls receive an ALS paramedic unit regardless of acuity

Only physicians respond to high-acuity calls

Dispatchers respond to scenes and triage in person

to track

2026 Statistics

Key Facts: ABEM EMS Exam

300

Exam Questions

ABEM 2025

2010

Year ABMS Approved

ABMS / ABEM

$2,215

Total Base Fees

ABEM 2026 ($470 + $1,745)

74%

2025 Pass Rate

ABEM

1 year

Required EMS Fellowship

ACGME

Every 2 years

Exam Cycle

Odd-numbered years only

The ABEM EMS Subspecialty Exam certifies physicians — typically board-certified emergency physicians who have completed a 1-year ACGME-accredited EMS fellowship — as subspecialists in out-of-hospital emergency medical care and EMS system medical direction. EMS was the first ABMS-approved emergency medicine subspecialty (approved 2010, first exam 2013). The exam has 300 multiple-choice questions administered in two sessions during an ~8-hour appointment, with 6 hours 20 minutes of actual testing time. The content blueprint covers Clinical Aspects of EMS Medicine (40%), Medical Oversight of EMS (30%), Quality Management & Research (15%), and Special Operations (15%). The exam is offered every two years in odd-numbered years. Fees total approximately $2,215 ($470 application + $1,745 registration). The 2025 first-time pass rate was 74%. The practice pathway has closed — all new candidates must complete an ACGME-accredited EMS fellowship. Successful diplomates serve as EMS medical directors, fellowship faculty, tactical EMS physicians, air medical directors, and disaster medicine leaders.

Sample ABEM EMS Practice Questions

Try these sample questions to test your ABEM EMS exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1An EMS system uses a tiered response model. Which statement best describes this design?

A.BLS units respond first for triage and call for ALS only when advanced interventions are indicated

B.All 911 calls receive an ALS paramedic unit regardless of acuity

C.Only physicians respond to high-acuity calls

D.Dispatchers respond to scenes and triage in person

Explanation: In a tiered response system, BLS units (EMT-level) respond first for lower-acuity or unclear calls, with ALS paramedic units upgraded only when dispatch criteria or on-scene findings indicate the need for advanced interventions. Tiered systems preserve paramedic skill exposure by keeping ALS unit volumes lower, reduce cost, and maintain coverage. All-ALS systems dispatch paramedics to every call — a different design choice with different tradeoffs.

2The Medical Priority Dispatch System (MPDS) is best described as:

A.A structured Emergency Medical Dispatch (EMD) protocol that assigns response determinants from caller interrogation

B.A field triage tool used on scene by paramedics

C.A hospital destination algorithm for stroke patients

D.A mass casualty triage system replacing START

Explanation: MPDS (developed by Priority Dispatch Corp/Jeff Clawson) is an EMD protocol used by 911 telecommunicators to interrogate callers, assign a determinant code (Alpha through Echo), and allocate the appropriate response (BLS vs ALS, cold vs hot). MPDS also provides pre-arrival instructions including bystander CPR coaching. It is a dispatch-phase tool, not a field or hospital-phase tool.

3A municipal EMS system is considering launching a community paramedicine program. Which target population most directly aligns with the goals of mobile integrated healthcare (MIH-CP)?

A.High-utilizer patients with chronic disease and frequent 911 calls that could be managed in the community

B.Multi-system trauma patients requiring surgical intervention

C.STEMI patients requiring percutaneous coronary intervention

D.Patients in refractory cardiac arrest requiring ECMO

Explanation: Mobile Integrated Healthcare / Community Paramedicine (MIH-CP) programs deploy specially trained paramedics to high-utilizer patients (frequent 911 callers, recently discharged CHF/COPD patients, post-op follow-ups) to manage chronic disease in the community and reduce avoidable ED visits. Acute high-acuity emergencies like trauma, STEMI, or cardiac arrest remain core 911 EMS, not MIH-CP, targets.

4Which of the following best distinguishes online (direct) medical control from offline (indirect) medical control?

A.Online medical control is real-time communication between a field provider and physician; offline is the protocols, QA, credentialing, and education established in advance

B.Online control is written protocols; offline is real-time radio orders

C.Online control applies only to BLS units; offline applies only to ALS units

D.Online control is performed by dispatchers; offline by medical directors

Explanation: Online (direct) medical control is real-time contact between the field provider and the medical control physician — typically by radio, phone, or telemedicine — for orders on specific patients. Offline (indirect) medical control encompasses everything a medical director does in advance: writing protocols, credentialing providers, training, QA/QI, and run review. Both are essential components of physician medical oversight.

5An EMS medical director reviews a run where a paramedic deviated from the asthma protocol and administered IV magnesium sulfate to a severely ill patient who improved. The most appropriate response is:

A.Conduct a QA review, document the deviation and clinical reasoning, and use the case to inform protocol updates and provider education

B.Immediately suspend the paramedic's certification

C.Ignore the deviation because the outcome was good

D.File a complaint with the state licensing board

Explanation: Protocol deviations — whether positive or negative outcomes — require structured review. The medical director documents the deviation, reviews clinical reasoning with the provider, considers whether the protocol should be updated (many systems have since added IV magnesium to severe asthma protocols), and provides education. Punitive suspension for a good-faith clinical decision damages a just-culture QA environment. Ignoring deviations erodes protocol integrity.

6Which of the following compression metrics best defines high-performance CPR?

A.Compression fraction >80%, rate 100-120/min, depth 2-2.4 inches, peri-shock pauses <10 seconds

B.Compression fraction >50%, rate 80-100/min, depth 1.5 inches, pauses <30 seconds

C.Compression fraction >95%, rate 150/min, depth 3 inches, no pauses

D.Compression fraction >60%, rate any, depth >1 inch, pauses <60 seconds

Explanation: High-performance CPR (HP-CPR) targets: compression fraction greater than 80% (time on chest / total arrest time), rate 100-120 per minute, depth 2-2.4 inches (5-6 cm) in adults, full chest recoil, and minimized peri-shock pauses under 10 seconds. Achieving these metrics in the field — often through Pit Crew CPR role assignments — is associated with improved neurologically intact survival from out-of-hospital cardiac arrest.

7The Pit Crew CPR model refers to:

A.A choreographed team approach with pre-assigned roles (compressor, airway, monitor, IV/IO, team leader) to minimize chaos during resuscitation

B.A research methodology for CPR quality metrics

C.A specific compression device mounted on the stretcher

D.A post-arrest cooling protocol

Explanation: Pit Crew CPR (popularized by Wake County EMS and Seattle Medic One) uses pre-assigned numbered roles and a choreographed approach so that when a cardiac arrest team arrives, each provider knows their position and task without verbal coordination. This minimizes no-flow time, preserves compression fraction, and improves team performance — much like a NASCAR pit crew.

8Which of the following meets the Basic Life Support (BLS) Termination of Resuscitation (TOR) rule for adult out-of-hospital cardiac arrest?

A.Arrest not witnessed by EMS, no ROSC prior to transport decision, and no shock delivered by the AED/monitor

B.Arrest not witnessed by bystander, no bystander CPR, and asystole on the monitor

C.Any arrest where the patient has been down more than 10 minutes

D.Any arrest where the family requests termination

Explanation: The BLS TOR rule (validated by Morrison et al.) permits consideration of field termination when ALL three criteria are met: (1) arrest not witnessed by EMS personnel, (2) no ROSC achieved prior to transport, and (3) no shock delivered by the AED/monitor. These criteria together have a high positive predictive value for death (>99%). The ALS TOR rule adds two further criteria: arrest not witnessed by bystander and no bystander CPR.

9The ROC PRIMED trial compared which interventions in out-of-hospital cardiac arrest?

A.Analyze-early vs analyze-later strategies and impedance threshold device (ITD) vs sham ITD

B.Amiodarone vs lidocaine vs placebo

C.Endotracheal intubation vs supraglottic airway

D.Manual vs mechanical CPR

Explanation: ROC PRIMED (Resuscitation Outcomes Consortium, published 2011) had two factorial arms: (1) analyze rhythm early (after 30-60 seconds of CPR) versus analyze later (after 3 minutes of CPR); and (2) active impedance threshold device versus sham ITD. Neither intervention improved survival. ALPS was the later ROC amiodarone/lidocaine/placebo trial. PART and AIRWAYS-2 studied airway strategies.

10The LUCAS device is used for:

A.Mechanical chest compressions during prolonged cardiac arrest or transport

B.Automated ventilation during resuscitation

C.Intraosseous drug delivery

D.Mechanical CPR in pediatric patients under 12 years old

Explanation: LUCAS (Lund University Cardiopulmonary Assist System) is a battery-powered mechanical chest compression device used to provide consistent, guideline-quality compressions during prolonged cardiac arrest, during transport in a moving ambulance, during PCI for refractory arrest, or during ECMO cannulation. It is approved for adult patients; pediatric use is limited by device sizing. It does not replace manual CPR initially but is often deployed once arrest is prolonged or transport is required.

About the ABEM EMS Exam

The ABEM Emergency Medical Services (EMS) Subspecialty Certification Exam is the ABMS-recognized board certification for physicians practicing out-of-hospital emergency medicine. EMS was approved as the first ABMS emergency medicine subspecialty in 2010 and first administered in 2013. The exam tests knowledge of prehospital clinical care, medical oversight of EMS systems, quality and research, and special operations (disaster, HAZMAT, TEMS, air medical). Candidates must complete an ACGME-accredited EMS fellowship.

Questions

300 scored questions

Time Limit

~8-hour appointment (6h 20m of testing across two sessions)

Passing Score

Scaled criterion-referenced passing score (0-195)

Exam Fee

$470 application + $1,745 registration (American Board of Emergency Medicine (ABEM) EMS Subboard)

ABEM EMS Exam Content Outline

40%

Clinical Aspects of EMS Medicine

Prehospital cardiac arrest (TOR, Pit Crew CPR, LUCAS, high-performance CPR), airway (supraglottic devices, RSI, capnography), trauma (TXA, tourniquets, REBOA, ATLS triage), pediatric (Broselow, intranasal meds), toxicology, environmental, and behavioral emergencies

30%

Medical Oversight of EMS

Online vs offline medical direction, protocol design, scope of practice, ALS/BLS/tiered response, EMD/MPDS dispatch, community paramedicine and mobile integrated healthcare, credentialing, and deviation review

15%

Quality Management and Research

QA/QI methodology, EMS performance metrics, landmark trials (ROC PRIMED, CRASH-2, PART, AIRWAYS-2), statistics, NEMSIS data, benchmarking, and patient safety

15%

Special Operations

Mass casualty triage (START, JumpSTART, SALT), disaster medicine, ICS/NIMS, hospital surge, HAZMAT and decon, CBRNE, TEMS/TCCC, air medical operations (flight physiology, hot/cold loads), and wilderness EMS

How to Pass the ABEM EMS Exam

What You Need to Know

Passing score: Scaled criterion-referenced passing score (0-195)
Exam length: 300 questions
Time limit: ~8-hour appointment (6h 20m of testing across two sessions)
Exam fee: $470 application + $1,745 registration

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

ABEM EMS Study Tips from Top Performers

1Memorize the Core Content of EMS Medicine blueprint weights (40/30/15/15) — the exam is proportionally distributed, so clinical topics deserve the most time

2Know the landmark prehospital trials cold — ROC PRIMED (amiodarone vs lidocaine vs placebo for VF/pulseless VT), CRASH-2 (TXA within 3 hours of trauma), PART (laryngeal tube vs ETT), AIRWAYS-2 (iGel vs ETT), OPALS, and PEACE

3Master high-performance CPR metrics — compression fraction >80%, rate 100-120/min, depth 2-2.4 inches, minimize peri-shock pauses <10 seconds, Pit Crew role assignments

4Understand field termination of resuscitation (TOR) criteria — BLS TOR (unwitnessed, no ROSC, no shock delivered) and ALS TOR rules with their reported PPV for death

5Learn mass casualty triage algorithms — START for adults (RPM: Respirations >30, Pulse/Perfusion cap refill >2s, Mental status), JumpSTART for pediatrics (age <8 or <100 lb), and SALT (Sort-Assess-Lifesaving-Treatment/Transport)

6Distinguish online (direct) from offline (indirect) medical control — online is real-time via radio/phone; offline is protocols, QA, credentialing, and education written in advance

7Know flight physiology essentials — cabin altitude effects (Boyle's law and gas expansion, Dalton's law and hypoxia), when to consider cabin altitude restrictions, and pneumothorax/bowel obstruction risk at altitude

8Review toxicology-EMS intersections — organophosphate poisoning (SLUDGE/DUMBELS, atropine/pralidoxime), CO poisoning, cyanide (hydroxocobalamin), and excited delirium (ketamine dosing)

9Study NAEMSP position statements — they are frequent exam topics and shape modern EMS medical direction practice

Frequently Asked Questions

Is the ABEM EMS exam the same as the ABEM primary emergency medicine exam?

No. The EMS exam is a subspecialty certification offered after the primary ABEM certification. Candidates must already hold ABMS Member Board certification (typically ABEM) and must complete a 1-year ACGME-accredited EMS fellowship. The EMS exam has 300 questions focused specifically on out-of-hospital care, EMS system design, medical oversight, and disaster/tactical/air medical operations — topics that are only briefly touched in the primary ABEM exam.

When was EMS recognized as an ABMS subspecialty?

The American Board of Medical Specialties (ABMS) approved Emergency Medical Services as a subspecialty of Emergency Medicine in September 2010. It was the first ABMS-recognized subspecialty of emergency medicine. The first ABEM EMS certification exam was administered in 2013. EMS is sponsored by ABEM as the primary member board.

Who is eligible to take the ABEM EMS exam?

Candidates must hold current certification from an ABMS Member Board (typically ABEM) and must have successfully completed an ACGME-accredited EMS fellowship (minimum 1 year). The practice pathway — which previously allowed senior EMS physicians to sit without fellowship training — has permanently closed. Applicants must also maintain an active unrestricted medical license and be participating in ABEM continuing certification.

What is the exam format?

The ABEM EMS exam is a computer-based test administered at Pearson VUE centers. It contains 300 multiple-choice, single-best-answer questions delivered in two separately timed sessions. The total appointment time is approximately 8 hours, with 6 hours 20 minutes of actual testing time and about 1 hour 40 minutes of breaks and administrative time. The exam is offered every two years, only in odd-numbered years.

What score do I need to pass the ABEM EMS exam?

ABEM uses a criterion-referenced scaled score from 0 to 195. The passing standard is set by a panel of EMS subspecialists using the Core Content of EMS Medicine as the blueprint. The passing score is not a fixed percentage of items correct — it is set via standard-setting methodology. The 2025 first-time pass rate was 74% per ABEM.

How much does the ABEM EMS exam cost?

The application fee is $470 and the exam registration fee is $1,745, for a base cost of approximately $2,215. Fees are subject to change. Candidates should also budget for board review materials ($400-$1,200), any review courses, travel to Pearson VUE, and ongoing MyEMSCert continuous certification fees. Total investment commonly reaches $2,500-$3,500.

How long does it take to prepare?

Most candidates prepare 4-8 months after completing EMS fellowship, accumulating 150-300 total study hours. The highest-yield preparation combines the Core Content of EMS Medicine, the NAEMSP textbook, and the NAEMSP Medical Directors Course. Landmark EMS trials (ROC PRIMED, CRASH-2, PART, AIRWAYS-2), protocols, and high-performance CPR metrics are recurring exam themes.

How do I maintain ABEM EMS certification?

ABEM uses a 10-year continuous certification cycle for EMS subspecialists. Diplomates participate in MyEMSCert, which replaces the old decennial recertification exam with annual learning activities, complete the required CME, pay annual fees, and maintain their underlying ABEM (or other ABMS Member Board) primary certification. Failure to maintain primary ABMS certification terminates EMS certification.