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100+ Free ABMDI Registry Practice Questions

Pass your American Board of Medicolegal Death Investigators Registry Certification (Diplomate) exam on the first try — instant access, no signup required.

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Which of the following BEST describes the MDI's role in handling the personal effects of a homicide victim?

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2026 Statistics

Key Facts: ABMDI Registry Exam

~240

Multiple-Choice Questions

ABMDI Registry Certification page

8

Exam Sections

ABMDI exam blueprint

640 hrs

Required MDI Experience

ABMDI Application Process

$350

Online Exam Fee

ABMDI Registry Certification page

5 yrs

Recertification Cycle

ABMDI Recertification page

45 hrs

CE for Recertification

ABMDI Recertification page

100 hrs

Scene Experience for Diplomate

ABMDI Application Process

30 days

Minimum Retake Wait

ABMDI Application Process

ABMDI Registry (Diplomate) is the entry-level medicolegal death investigator board certification. The exam is roughly 240 multiple-choice items across 8 sections with up to 4 hours of testing time; a passing score is required in each section. Eligibility requires high-school diploma, current employment in an ME/coroner or equivalent military authority, 640 hours of documented death-investigation experience, at least 100 hours of documented scene experience for the Diplomate track, and completion of the NIJ National Medicolegal Death Investigator Training Manual and exam. Fees are $350 online (or $400 paper/pencil) plus a $50 non-refundable application fee. Failed sections may be retested twice with at least 30 days between attempts. Recertification is a 5-year cycle with 45 hours of approved continuing education.

Sample ABMDI Registry Practice Questions

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

1Which of the following best describes the distinction between a medical examiner and a coroner system in the United States?
A.Medical examiners are elected lay officials; coroners are appointed physicians
B.Medical examiners are physicians (usually forensic pathologists); coroners are elected or appointed officials who may or may not be physicians
C.Both must be board-certified forensic pathologists in all 50 states
D.Coroners only handle suspicious deaths while medical examiners only handle natural deaths
Explanation: Medical examiners are physicians, typically board-certified forensic pathologists, appointed to their position. Coroners are elected or appointed officials whose qualifications vary widely by jurisdiction and who are not required to be physicians. U.S. jurisdictions use ME, coroner, or mixed (Type I/II/III) systems with significant state-by-state variation.
2According to most state reportable-death statutes, which of the following deaths is LEAST likely to require notification of the ME/coroner office?
A.An 80-year-old with documented terminal pancreatic cancer who dies at home under hospice with the attending physician present
B.A 45-year-old who dies within 22 hours of admission to the hospital
C.A construction worker who dies after falling from scaffolding at a job site
D.A 30-year-old found dead in a jail holding cell
Explanation: A hospice patient with a documented terminal illness dying under physician care is generally a natural, anticipated death that the attending physician can certify without ME/coroner involvement. The other three are reportable: deaths within 24 hours of hospital admission, occupational deaths, and any death in custody must be reported under typical state statutes.
3Rigor mortis typically reaches full development at approximately what time after death under average ambient conditions?
A.30 minutes
B.2 hours
C.12 hours
D.72 hours
Explanation: Rigor mortis begins 2-6 hours after death, reaches full development at approximately 12 hours, and then begins to dissipate over the next 24-72 hours as autolysis progresses. Temperature, antemortem activity, and body habitus accelerate or delay this timeline.
4A decedent has bright cherry-red lividity. Which of the following is the most likely cause to investigate?
A.Carbon monoxide poisoning
B.Methemoglobinemia
C.Cyanide also produces cherry-red livor but is far less common
D.Both A and C
Explanation: Cherry-red lividity is classically associated with carbon monoxide poisoning (carboxyhemoglobin) and, less commonly, cyanide poisoning. Methemoglobinemia produces a chocolate-brown discoloration, not cherry-red. Hypothermia can also produce a pink livor.
5What is the approximate rate of cooling used in the classic algor mortis rule of thumb under average ambient conditions?
A.0.5°F per hour
B.1.5°F per hour
C.3°F per hour
D.5°F per hour
Explanation: The classic algor mortis estimate is approximately 1.5°F per hour of cooling toward ambient temperature, though this is heavily affected by body habitus, clothing, environment, and ambient temperature. It is a rough estimate only and is not reliable beyond the first 24 hours.
6Livor mortis typically becomes fixed (no longer blanches with pressure) at approximately what time after death?
A.30 minutes
B.2 hours
C.8-12 hours
D.48 hours
Explanation: Livor mortis begins to appear within 30 minutes to 2 hours after death, becomes pronounced by 4-6 hours, and is generally fixed (no longer blanches with pressure) by 8-12 hours. A pattern of livor inconsistent with the body's position can suggest the body was moved after death.
7Which of the following best describes the relationship between cause, mechanism, and manner of death?
A.Cause is the disease or injury; mechanism is the physiologic derangement; manner is the classification (natural/accident/suicide/homicide/undetermined)
B.Cause and mechanism are synonyms; manner is the legal ruling
C.Manner is the disease; cause is the legal ruling
D.Mechanism is the same as manner
Explanation: Cause of death is the disease or injury that initiated the lethal chain (e.g., gunshot wound, coronary artery disease). Mechanism is the physiologic derangement that produced death (e.g., exsanguination, ventricular fibrillation). Manner classifies the circumstances into natural, accident, suicide, homicide, or undetermined.
8An MDI documents a gunshot wound with a circular defect surrounded by black soot deposition and stellate tearing of the surrounding skin. The range of fire is most consistent with which of the following?
A.Distant range (over 3 feet)
B.Intermediate range (stippling visible)
C.Close range without contact
D.Contact or near-contact range
Explanation: Soot deposition with stellate (star-shaped) tearing of the skin is characteristic of contact or near-contact gunshot wounds, especially over bone where expanding gases tear the skin. The muzzle imprint or 'searing' is another contact feature. Stippling without soot suggests intermediate range; no soot or stippling indicates distant range.
9Which postmortem specimen is generally most reliable for ethanol quantification in a non-decomposed decedent?
A.Cardiac (heart) blood
B.Peripheral blood (femoral)
C.Gastric contents
D.Vitreous humor — but only in extreme cases
Explanation: Peripheral (femoral) blood is the preferred specimen for postmortem ethanol and drug quantification because it is less subject to postmortem redistribution and contamination from gastric contents than cardiac blood. Vitreous humor is also useful and is preferred in decomposed or unavailable-blood cases.
10What is the recommended volume of vitreous humor to collect from each eye for toxicology testing?
A.0.5 mL total from one eye only
B.Approximately 2-3 mL per eye (collect both)
C.10 mL per eye
D.Vitreous is not collected for toxicology
Explanation: Approximately 2-3 mL of vitreous humor is typically collected from each eye using a needle inserted at the lateral canthus, with care to replace the volume with saline for cosmetic restoration. Vitreous is valuable for ethanol, glucose, electrolytes, and select drugs and is more resistant to decomposition than blood.

About the ABMDI Registry Exam

The ABMDI Registry Certification (Diplomate) is the entry-level board credential for medicolegal death investigators. It is delivered as an approximately 240-question multiple-choice exam in eight content sections covering scope of authority, scene response, postmortem changes, identification, trauma, toxicology, pediatric death, and legal/ethical responsibilities, mapped to the NIJ National Medicolegal Death Investigator Training Manual.

Questions

100 scored questions

Time Limit

Up to 4 hours

Passing Score

Must pass each of 8 sections

Exam Fee

$350 online + $50 application fee (American Board of Medicolegal Death Investigators (ABMDI))

ABMDI Registry Exam Content Outline

Section 1

Interacting with Federal, State & Local Agencies

ME vs coroner authority, statutory reportable deaths, and coordination with law enforcement, public health, and military authorities.

Section 2

Communicating in Death Investigation

Family notification, witness interviewing, professional reporting, and culturally appropriate communication.

Section 3

Investigating Deaths

Scene response, PPE, scene photography, body examination, postmortem changes, and PMI estimation.

Section 4

Preserving Evidence

Clothing, toxicology specimens (vitreous, peripheral blood, bile, urine), chain of custody, and decedent transport.

Section 5

Legal & Ethical Responsibilities

Statutory authority, Frye/Daubert, FRE 702, expert testimony, NAME guidelines, and ABMDI/OSAC ethics.

Section 6

Scientific Knowledge

Anatomy, trauma typology, asphyxia, drug pharmacology and postmortem redistribution, infectious disease, and forensic anthropology basics.

Section 7

Managing Stress

Stress reactions, peer support, secondary traumatic stress, and resiliency in mass-fatality and pediatric cases.

Section 8

Mass Fatality & Special Investigations

ICS, DMORT, infant death (SUIDI), occupational deaths, deaths in custody, and abusive head trauma considerations.

How to Pass the ABMDI Registry Exam

What You Need to Know

  • Passing score: Must pass each of 8 sections
  • Exam length: 100 questions
  • Time limit: Up to 4 hours
  • Exam fee: $350 online + $50 application fee

Keys to Passing

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

ABMDI Registry Study Tips from Top Performers

1Work through the full NIJ National Medicolegal Death Investigator Training Manual and its self-exam before sitting for the ABMDI Registry — most exam content maps directly to it.
2Memorize postmortem-change timelines: rigor onset ~2-6 hours, full ~12 hours, dissipation 24-72 hours; livor fixed at 8-12 hours; algor mortis approximately 1.5°F per hour as a rule of thumb.
3Lock in cause vs mechanism vs manner: cause is the disease/injury, mechanism is the physiologic derangement, manner is one of natural, accident, suicide, homicide, or undetermined.
4Drill toxicology specimen choices — vitreous humor (2-3 mL) for late or decomposed cases, peripheral blood for accurate ethanol/drug levels, bile and liver for opioids, urine for screening.
5Practice gunshot range determination by feature: contact (muzzle imprint, soot, stellate tear), close/intermediate (stippling/tattooing), distant (no soot or stippling).
6Study reportable-death categories in your jurisdiction: sudden/unexpected, traumatic, in-custody, MVCs, drug-related, occupational, public-health, infant, and deaths within 24 hours of hospital admission.
7Read the NAME (National Association of Medical Examiners) Forensic Autopsy Performance Standards and the OSAC Medicolegal Death Investigation subcommittee documents to align with current standards.
8Build endurance with full timed practice sections before exam day — 4 hours of multiple-choice testing is taxing without prior pacing practice.

Frequently Asked Questions

What is the ABMDI Registry Certification?

The ABMDI Registry Certification (Diplomate) is the entry-level board credential issued by the American Board of Medicolegal Death Investigators for working medicolegal death investigators. It documents that an investigator meets ABMDI's experience, education, and examination standards.

How many questions are on the ABMDI Registry exam and how long is it?

The ABMDI Registry exam is approximately 240 multiple-choice questions delivered across 8 content sections. Candidates have up to about 4 hours to complete it.

What is the ABMDI Registry passing score?

ABMDI requires a passing score in each of the 8 sections. There is no single combined cutoff published; sectional pass/fail is what determines whether you earn the credential.

What are the eligibility requirements for the ABMDI Registry?

You must be at least 18 with a high school diploma, currently employed in an ME/coroner office or equivalent military authority conducting death investigations, have 640 hours of documented death-investigation experience, complete the NIJ National Medicolegal Death Investigator Training Manual and its exam, and submit two professional references.

What is the difference between Associate and Diplomate?

Both tracks fall under the Registry Certification. Associate is for investigators with limited or no documented scene experience. Diplomate requires at least 100 hours of documented death-scene experience in addition to the 640-hour core requirement.

How much does the ABMDI Registry exam cost?

The online exam fee is $350 plus a $50 non-refundable application fee. The paper/pencil format adds an extra $50. Failed-section retests are $50 per section, not to exceed $200.

What happens if I fail one or more sections?

You may retest up to two additional times. There must be at least 30 days between testing dates, and you only retake the section(s) you failed rather than the entire exam.

How do I recertify with ABMDI?

Diplomates have a 5-year recertification cycle and must accumulate 45 hours of ABMDI-approved continuing education. ABMDI accepts CE from AMA, ANA, ABA, AAPA, ASCP, CAP, EMS, FEMA, IACET, and recognized post-secondary institutions, among others.

Do I need to complete the NIJ Death Investigation Manual before applying?

Yes. ABMDI requires completion of the National Institute of Justice National Medicolegal Death Investigator Training Manual and its end-of-manual examination as part of Registry eligibility.