100+ Free ABPM Occupational Medicine Practice Questions

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Question 1

Score: 0/0

Under OSHA 1910.1025, at what blood lead level (BLL) must a worker be medically removed from lead exposure?

BLL >= 30 µg/dL

BLL >= 40 µg/dL

BLL >= 50 µg/dL

BLL >= 70 µg/dL

to track

2026 Statistics

Key Facts: ABPM Occupational Medicine Exam

~250

Total MCQ Items

ABPM Occupational and Environmental Medicine exam

~8 hr

Total Exam Time

1-day computer-based test including breaks

3.5 µg/dL

CDC BLL Reference

CDC 2021 elevated blood lead reference value

$1,900

2026 Initial Cert Fee

ABPM OEM primary certification

3 yr

Required Residency

ACGME OEM residency including MPH

10 yr

Certificate Validity

ABPM Continuing Certification via LLSA program

ABPM Occupational and Environmental Medicine is a 1-day computer-based certifying exam comprising approximately 250 single-best-answer MCQs over ~8 hours. The 2026 blueprint emphasizes toxicology/chemical exposures (~12%), pulmonary/respiratory (~12%), regulatory/legal (~12%), musculoskeletal and ergonomics (~10%), fitness for duty and surveillance (~8%), environmental medicine (~8%), and smaller sections on radiation, infectious disease, cancer, sectors, and epidemiology. Initial certification fee is ~$1,900; 3-year ACGME residency required including MPH.

Sample ABPM Occupational Medicine Practice Questions

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

1Under OSHA 1910.1025, at what blood lead level (BLL) must a worker be medically removed from lead exposure?

A.BLL >= 30 µg/dL

B.BLL >= 40 µg/dL

C.BLL >= 50 µg/dL

D.BLL >= 70 µg/dL

Explanation: OSHA's general industry lead standard (29 CFR 1910.1025) requires medical removal when a single BLL is >= 60 µg/dL or the average of three tests is >= 50 µg/dL. The construction standard (1926.62) uses a 50 µg/dL threshold.

2The CDC's 2021 blood lead reference value for adults indicating exposure above the general population is:

A.1.0 µg/dL

B.3.5 µg/dL

C.5.0 µg/dL

D.10 µg/dL

Explanation: In 2021 the CDC/NIOSH lowered the adult reference BLL from 5 to 3.5 µg/dL, corresponding to the 95th percentile of U.S. adult levels. It is used for surveillance, not as an OSHA removal threshold.

3Which form of mercury is most associated with neurodevelopmental toxicity from fish consumption?

A.Elemental mercury vapor

B.Inorganic mercuric chloride

C.Methylmercury

D.Mercurous chloride

Explanation: Methylmercury, an organic form produced by bacterial methylation in aquatic systems, bioaccumulates in predatory fish and crosses the placenta and blood-brain barrier, causing developmental CNS toxicity (classically described in Minamata).

4Chronic cadmium exposure is most strongly associated with injury to which organ?

A.Liver

B.Proximal renal tubule

C.Bone marrow

D.Myocardium

Explanation: Cadmium accumulates in the renal cortex and causes proximal tubular dysfunction with low-molecular-weight proteinuria (beta-2 microglobulin). Severe chronic exposure produced itai-itai disease with osteomalacia and nephropathy.

5Inorganic arsenic is an IARC Group 1 human carcinogen causally associated with which cancers?

A.Liver and pancreas

B.Lung, skin, and bladder

C.Brain and bone

D.Prostate and testis

Explanation: Inorganic arsenic causes cancers of the lung, skin (squamous, basal, Bowen's), and urinary bladder, plus increased risk of kidney and liver cancers. Noncancer effects include peripheral neuropathy, hyperpigmentation, and hyperkeratosis.

6Hexavalent chromium (Cr VI) exposure in welding and chrome plating is primarily associated with which malignancy?

A.Mesothelioma

B.Lung cancer

C.Bladder cancer

D.Leukemia

Explanation: Cr VI is an IARC Group 1 carcinogen with strong evidence for lung cancer in chromate production, plating, and stainless-steel welding. Nasal septal ulceration/perforation and contact dermatitis are noncancer effects.

7Chronic benzene exposure is most characteristically associated with which hematologic malignancy?

A.Chronic lymphocytic leukemia

B.Acute myeloid leukemia

C.Hodgkin lymphoma

D.Multiple myeloma

Explanation: Benzene is an IARC Group 1 carcinogen causally linked to acute myeloid leukemia (AML) and aplastic anemia. OSHA PEL is 1 ppm 8-hr TWA with a 5 ppm STEL; medical surveillance is required.

8Chronic occupational exposure to n-hexane (e.g., screen printing, shoemaking) most commonly causes:

A.Central demyelination

B.Symmetric distal axonal sensorimotor polyneuropathy

C.Parkinsonism

D.Optic neuritis

Explanation: n-Hexane is metabolized to 2,5-hexanedione, which crosslinks neurofilaments and produces a distal, length-dependent axonal polyneuropathy. Co-exposure with methyl ethyl ketone potentiates toxicity.

9Which biomarker best confirms acute organophosphate pesticide poisoning?

A.Serum lead

B.RBC (erythrocyte) acetylcholinesterase

C.Urinary mandelic acid

D.Serum cotinine

Explanation: RBC acetylcholinesterase reflects the neuronal enzyme more accurately than plasma (butyryl-) cholinesterase, which is more sensitive but less specific. Both are used in surveillance of applicators in states such as California and Washington.

10Paraquat ingestion or high-dose exposure is characteristically associated with:

A.Aplastic anemia

B.Progressive pulmonary fibrosis

C.Hepatic angiosarcoma

D.Peripheral neuropathy

Explanation: Paraquat generates reactive oxygen species concentrated in type II pneumocytes, producing delayed progressive pulmonary fibrosis. Supplemental oxygen is avoided because it accelerates lung injury.

About the ABPM Occupational Medicine Exam

The ABPM Occupational and Environmental Medicine Primary Certification validates expert-level knowledge in diagnosis, treatment, and prevention of work-related and environmental disease — toxicology (heavy metals, solvents, pesticides, CO/cyanide), pulmonary disease (silica, asbestos, berylliosis, occupational asthma, HP, CWP), ergonomics and NIOSH lifting equation, hearing conservation (OSHA 1910.95), dermatology, OSHA/NIOSH/EPA/MSHA regulation, workers' compensation and AMA Guides 6th ed impairment rating, ADA/FMLA, DOT drug testing (49 CFR Part 40) and FMCSA CDL medical exams, medical surveillance, infectious disease (BBP, TB, zoonoses), radiation (ionizing/non-ionizing), IARC occupational cancers, and environmental topics (radon, lead in water, PFAS, climate). Requires a 3-year ACGME-accredited OEM residency including MPH.

Questions

250 scored questions

Time Limit

1-day CBT (~8 hours including breaks)

Passing Score

Criterion-referenced scaled score set by ABPM (modified Angoff)

Exam Fee

~$1,900 initial certification fee (ABPM 2026 OEM primary) (American Board of Preventive Medicine (ABPM) / Pearson VUE)

ABPM Occupational Medicine Exam Content Outline

~12%

Toxicology & Chemical Exposures

PEL/TLV/REL/IDLH/BEI, lead (CDC 2021 BLL reference 3.5 µg/dL), mercury forms, arsenic, cadmium (renal), Cr(VI) (lung cancer), benzene (AML/MDS), n-hexane (neuropathy), TCE/perc, organophosphates (ACh-esterase, pralidoxime), paraquat, CO (HBO), cyanide (hydroxocobalamin).

~12%

Pulmonary / Respiratory Disease

Occupational asthma (IgE vs sensitizer — diisocyanates, RADS), HP (farmer's lung, bird fancier's, hot tub MAC), silica (OSHA 50 µg/m³ PEL, accelerated silicosis, PMF, TB), asbestos (mesothelioma 20-50 yr, smoking synergism, pleural plaques), CWP/black lung, berylliosis (BeLPT), byssinosis. Respirator selection (N95, APR, PAPR, SAR, SCBA), APFs, fit testing, OSHA 1910.134 medical clearance.

~12%

Regulatory, Policy & Legal

OSHA (PELs, General Duty Clause, whistleblower), NIOSH (RELs), EPA, MSHA. Workers' Comp (AOE/COE, MMI, AMA Guides 6th ed). ADA reasonable accommodation, FMLA (12 weeks). DOT 49 CFR Part 40 drug/alcohol testing (5-panel, SAP, MRO, chain of custody).

~10%

Musculoskeletal & Ergonomics

NIOSH lifting equation (RWL, LI; LC=51 lbs), RULA, REBA, Strain Index, Snook tables. Carpal tunnel (force, repetition, vibration), HAVS Stockholm, CTDs, low back pain red flags (cauda equina, fracture, malignancy, infection).

~8%

Fitness for Duty & Medical Surveillance

FMCSA CDL medical (2-yr cert, insulin-treated DM federal exemption, OSA screening, HTN stage limits), FAA, FRA, USCG, NRC, NFPA 1582 firefighter fitness. OSHA medical surveillance for asbestos, silica, lead, benzene, cadmium, noise, respirator users.

~8%

Environmental Medicine

IAQ (CO2, VOCs, formaldehyde), radon (EPA 4 pCi/L action level), mold evidence, lead in drinking water (2021 LCRR, action level 15 ppb), Legionella, SBS/BRI, PFAS, climate change (heat illness, vector-borne, wildfire smoke), Superfund/CERCLA, RCRA.

~5%

Hearing Conservation

OSHA 1910.95 HCP (action level 85 dBA TWA, PEL 90 dBA), baseline and annual audiograms, STS ≥10 dB at 2/3/4 kHz age-corrected, NIHL (bilateral SNHL, 4-6 kHz notch), HPDs (NRR with OSHA derating, dual protection >100 dBA).

~5%

Dermatology

Irritant vs allergic contact dermatitis (Type IV — nickel, chromate, epoxy, thiurams), chloracne (TCDD), chemical leukoderma (phenols), outdoor-worker UV skin cancer, patch testing.

~5%

Radiation

Ionizing (alpha/beta/gamma/neutron/X-ray) vs non-ionizing (UV, IR, RF, ELF). Occupational limits (5 rem/yr TEDE, 0.5 rem declared-pregnant worker), dosimetry (film badge, TLD, OSL), ALARA, emergency response (KI for I-131), NRC.

~5%

Infectious Diseases

OSHA BBP Standard 1910.1030 (HBV/HCV/HIV, PEP, Needlestick Safety and Prevention Act), TB in healthcare (IGRA, airborne isolation, fit-tested N95), vaccine-preventable (HBV, MMR, varicella, influenza, Tdap, COVID), zoonoses (brucellosis, Q fever, anthrax, tularemia, leptospirosis), Legionella outbreaks.

~5%

Occupational Cancer

IARC Group 1/2A/2B. Group 1 occupational carcinogens: asbestos, benzene, Cr(VI), formaldehyde, nickel compounds, vinyl chloride, arsenic, aromatic amines (bladder), ionizing radiation, solar UV, hardwood dust (sinonasal).

~5%

Worker Populations & Sectors

Agriculture (pesticides, heat, zoonoses), construction (falls, silica, asbestos, struck-by), healthcare (BBP, TB, WPV, MSK), firefighting (cancer presumption, cardiac on-duty leading cause, CO/CN), mining (MSHA).

~4%

Mental Health, Programs & Systems

Workplace violence prevention, critical incident stress, EAP, DOT SAP process, Safety Management Systems (OSHA VPP, ISO 45001), OSHA recordkeeping (300/300A/301), return-to-work and disability management.

~4%

Epidemiology, Biostatistics & Ethics

Occupational cohort studies, SMR, healthy worker effect, exposure assessment, screening metrics, Bradford Hill causation, confounding, IRB/ethics.

How to Pass the ABPM Occupational Medicine Exam

What You Need to Know

Passing score: Criterion-referenced scaled score set by ABPM (modified Angoff)
Exam length: 250 questions
Time limit: 1-day CBT (~8 hours including breaks)
Exam fee: ~$1,900 initial certification fee (ABPM 2026 OEM primary)

Keys to Passing

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

ABPM Occupational Medicine Study Tips from Top Performers

1Memorize the OSHA PEL / ACGIH TLV / NIOSH REL hierarchy and what each means. OSHA PELs are legally enforceable and largely unchanged since 1971 — often less protective than the ACGIH TLV (non-regulatory but consensus) or NIOSH REL (recommended). Know key updates: silica 50 µg/m³ PEL (2016) and lead medical-removal thresholds. CDC's 2021 blood lead reference value is 3.5 µg/dL (not a PEL, but flags an elevated exposure).

2Respirator selection NIOSH 42 CFR 84 pearls: know the Assigned Protection Factor ladder — filtering facepiece/half-face APR 10, full-face APR 50, loose-fitting PAPR 25, tight-fitting PAPR 50, full-face SAR-continuous 1,000, SCBA pressure-demand 10,000. Any tight-fitting respirator requires annual fit testing (qualitative with saccharin/Bitrex for APFs ≤10, or quantitative for higher APFs) and OSHA 1910.134 medical clearance before use.

3Hearing conservation: OSHA 1910.95 action level is 85 dBA 8-hr TWA (triggers HCP) and the PEL is 90 dBA. Standard Threshold Shift = ≥10 dB average change at 2, 3, and 4 kHz in either ear from baseline (age-corrected). NIHL is typically bilateral symmetric SNHL with a 4-6 kHz notch. For exposures >100 dBA, consider dual protection; apply OSHA's 50% derating to manufacturer's NRR (or use ANSI-2019 PAR).

4Workers' compensation vs ADA vs FMLA: WC covers work-related injury/illness (AOE/COE test) and uses AMA Guides 6th ed for permanent impairment. ADA requires reasonable accommodation for qualified individuals who can perform essential functions; employer may require fitness-for-duty exam job-related and consistent with business necessity. FMLA gives 12 weeks unpaid leave per year for a serious health condition with healthcare provider certification. These three systems overlap but have different tests, benefits, and employer obligations.

5DOT drug and alcohol testing under 49 CFR Part 40: 5-panel urine (amphetamines, cocaine, opioids including prescription synthetics, PCP, marijuana/THC) plus alcohol. Triggers: pre-employment, random, post-accident, reasonable suspicion, return-to-duty, follow-up. MRO interprets positives. A verified positive requires SAP evaluation, completion of recommended treatment/education, and follow-up testing before return-to-duty. Chain of custody is mandatory.

Frequently Asked Questions

What is the ABPM Occupational and Environmental Medicine certification?

The ABPM Occupational and Environmental Medicine (OEM) primary certification is awarded by the American Board of Preventive Medicine to physicians who demonstrate expert knowledge in preventing and managing work-related and environmental disease. Scope includes toxicology, occupational lung disease, ergonomics, hearing conservation, OSHA/NIOSH regulation, workers' compensation, DOT medical exams, medical surveillance, infectious disease in the workplace, radiation health, and environmental health. It qualifies physicians for clinical OEM practice, corporate medical director roles, and consultation to industry, government, labor, and public health.

Who is eligible to take the ABPM OEM exam?

Candidates must have completed an ACGME-accredited Occupational and Environmental Medicine residency (typically 3 years total: a clinical PGY-1 year plus two years of academic/practicum training that includes an MPH or equivalent master's degree). A valid unrestricted medical license is required at the time of examination. Program director attestation of satisfactory completion is required.

What is the format of the ABPM OEM exam?

The exam is a 1-day computer-based examination administered at Pearson VUE test centers, comprising approximately 250 single-best-answer multiple-choice questions over about 8 hours including scheduled breaks. Items frequently include exposure scenarios, industrial hygiene data, spirometry/audiometry results, regulatory citations, and workers' compensation vignettes.

How much does the 2026 ABPM OEM exam cost?

The 2026 ABPM OEM initial primary certification fee is approximately $1,900 (verify on theabpm.org). Cancellation and refund follow the ABPM schedule with decreasing refunds as the exam date approaches. Continuing Certification (LLSA) fees apply after passing. Retakes within the qualification window require re-registration and full fee payment.

When is the 2026 exam administered?

ABPM OEM is typically offered in a spring testing window. Applications usually open in the fall with a deadline in late winter. Candidates schedule appointments with Pearson VUE after application approval. Confirm exact 2026 dates on the ABPM website.

How is the exam scored?

ABPM uses criterion-referenced scoring with a fixed passing standard set by subject-matter experts using the modified Angoff method. A candidate's pass/fail result depends on performance relative to the cut-score, not on other candidates. Score reports include subdomain feedback. Results are typically released 6-8 weeks after the administration closes.

What are the highest-yield topics?

Highest-yield topics: OSHA PELs vs ACGIH TLVs vs NIOSH RELs, CDC 2021 lead BLL reference (3.5 µg/dL), OSHA 1910.134 respirator standard (APFs, fit testing, medical clearance), OSHA 1910.95 hearing conservation (action level 85 dBA, STS), OSHA 1910.1030 bloodborne pathogens, silica (50 µg/m³ PEL), asbestos and mesothelioma (smoking synergism), organophosphate mechanism and pralidoxime, CO/cyanide antidotes, NIOSH lifting equation, AMA Guides 6th ed impairment, DOT 49 CFR Part 40 drug testing and FMCSA CDL medical rules, ADA reasonable accommodation, and IARC Group 1 occupational carcinogens.

How should I study for this exam?

Use a structured 12-18 month plan during and after residency. Map to the ABPM OEM content outline: lead with toxicology, then pulmonary/respirators, ergonomics, regulatory/legal, fitness for duty/surveillance, environmental medicine, and finish with radiation, infectious disease, cancer, sectors, and epidemiology. Integrate LaDou/Harrison's OEM, ACOEM guidelines, OSHA standards (1910.95, 1910.134, 1910.1030), NIOSH Pocket Guide, and the AMA Guides 6th ed. Complete high-volume MCQs with timed sets. Take 2-3 full-length mock exams. Drill PEL/TLV/BEI tables, regulatory citations, and exposure-disease associations.