ABIM Practice Test
Updated October 2026Facts verified Oct 25, 2026 against American Board of Internal Medicine
The ABIM internal medicine certification is valid for ten years. Maintaining certification requires participating in the ABIM MOC (Maintenance of Certification) program, which includes earning points every two years and passing a comprehensive assessment every ten years. Practice with the free ABIM - American Board of Internal Medicine practice test on PracticeTestGeeks (7 questions with answer explanations).
ABIM: upcoming dates and official changes
- Dec 1, 2026: Registration for the 2027 ABIM Internal Medicine Certification Exam opens on Dec. 1, 2026.[1]
- Apr 15, 2027: Standard registration for the 2027 ABIM Internal Medicine Certification Exam runs through Apr. 15, 2027.[1]
- Apr 16, 2027 – Apr 28, 2027: Late registration for the 2027 ABIM Internal Medicine Certification Exam runs from Apr. 16, 2027 through Apr. 28, 2027.[1]
- Aug 12, 2027 – Aug 26, 2027: The ABIM Internal Medicine Certification Exam in 2027 can be taken on Aug. 12, 16, 17, 25 or 26, 2027.[1]
- The ABIM Internal Medicine Certification Exam lasts approximately 10 hours, divided into four sessions of up to two hours each.[1]
- The ABIM Internal Medicine exam pass-fail decision is based on performance on the entire exam, against an absolute standard independent of other candidates.[1]
- The ABIM Internal Medicine certification exam fee is $1,430.[2]
- An ABIM certificate remains valid as long as the diplomate continues to participate in Maintenance of Certification (MOC).[1]
- ABIM Internal Medicine exam appointments are scheduled with the test vendor, Pearson Professional Assessments.[1]
- To take the ABIM Internal Medicine exam, physicians must complete 36 calendar months of ACGME-accredited (or Canadian-accredited) graduate medical education by August 31 of the exam year.[3]
- ABIM releases final Internal Medicine exam results within three months of the last date of the exam.[1]
- Standard registration for the 2027 ABIM Internal Medicine Certification Exam runs through Apr. 15, 2027.[1]
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
ABIM Exam at a Glance
| Item | Detail | Source · Verified |
|---|---|---|
| Time limit | About 10 hours, four sessions of up to 2 hours[1] | American Board of Internal Medicine · Oct 25, 2026 |
| Passing score | Absolute standard, set by ABIM; pass/fail on the entire exam[1] | American Board of Internal Medicine · Oct 25, 2026 |
| Exam fee (Internal Medicine initial certification) | $1,430[2] | American Board of Internal Medicine · Oct 25, 2026 |
| Validity | Valid while participating in MOC[1] | American Board of Internal Medicine · Oct 25, 2026 |
| Delivery | Pearson test centers[1] | American Board of Internal Medicine · Oct 25, 2026 |
| Eligibility | 36 months of accredited residency training[3] | American Board of Internal Medicine · Oct 25, 2026 |
| Score release | Within 3 months of the last exam date[1] | American Board of Internal Medicine · Oct 25, 2026 |
| Late registration deadline (2027 exam) | Apr. 16 – Apr. 28, 2027[1] | American Board of Internal Medicine · Oct 25, 2026 |
| Late registration deadline (late registration fee) | $400 non-refundable late fee[2] | American Board of Internal Medicine · Oct 25, 2026 |
| Registration deadline (2027 exam) | Apr. 15, 2027[1] | American Board of Internal Medicine · Oct 25, 2026 |
| Registration opens (2027 exam) | Dec. 1, 2026[1] | American Board of Internal Medicine · Oct 25, 2026 |
| Testing window (Internal Medicine Certification Exam 2027) | Aug. 12, 16, 17, 25, 26, 2027[1] | American Board of Internal Medicine · Oct 25, 2026 |
What changed for ABIM in 2026
- Oct 25, 2026: Registration deadline (2027 exam) changed to Apr. 15, 2027 (previously Apr. 15, 2027 (11:59 p.m. ET)).[1]
- Oct 25, 2026: Late registration deadline (2027 exam) changed to Apr. 16 – Apr. 28, 2027 (previously Apr. 16 – Apr. 28, 2027 (non-refundable late fee)).[1]
- Oct 25, 2026: Delivery changed to Pearson test centers (previously Secure testing centers (Pearson)).[1]
According to American Board of Internal Medicine, “The examination pass-fail decision is based on your performance on the entire examination.”[1]
ABIM Practice Test Questions
Prepare for the ABIM - American Board of Internal Medicine exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
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Worked examples: how to reason through ABIM questions
These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.
Example 1
Question: Which intervention is most effective for improving muscle strength and function in an older adult with sarcopenia?
- Testosterone replacement in eugonadal men
- Progressive resistance training
- Growth hormone therapy
- Vitamin B12 supplementation
Answer: B. Progressive resistance training
Explanation:
Progressive resistance training is correct because muscle loads, not hormones or vitamins, drive the gain in strength and function that sarcopenia patients need. Adequate protein intake supports it.
Testosterone in eugonadal men is wrong because replacing a hormone that is already at a normal level does not add meaningful strength. Growth hormone is wrong because it does not reliably improve function in older adults and carries side effects. Vitamin B12 is wrong because it helps only when the patient is actually deficient, and nothing in the stem suggests that.
General rule: for age-related muscle loss, start with exercise and nutrition. Hormones and supplements are for a documented deficiency, not for the label of frailty.
Example 2
Question: A 50-year-old woman with diffuse cutaneous systemic sclerosis presents with blood pressure 210/120 mm Hg, headache, and creatinine rising from 0.9 to 2.4 mg/dL. Which antihypertensive should be started first?
- Labetalol
- Amlodipine
- Hydralazine
- Captopril
Answer: D. Captopril
Explanation:
Captopril is correct. Scleroderma renal crisis is driven by the renin-angiotensin system, so an ACE inhibitor treats the cause of the severe hypertension and the falling kidney function. It should be continued even if the creatinine climbs or dialysis becomes necessary.
Labetalol is wrong because it lowers pressure without blocking the angiotensin pathway behind the crisis. Amlodipine is wrong because it is too weak and not targeted for this emergency. Hydralazine is wrong because direct vasodilation can provoke more reflex renin release and does not protect the kidney.
General rule: new severe hypertension with rising creatinine in diffuse systemic sclerosis means scleroderma renal crisis, and the first drug is an ACE inhibitor.
Example 3
Question: A patient has fever, confusion, thrombocytopenia, schistocytes on smear, and elevated LDH. Which underlying deficiency is most likely?
- ADAMTS13 activity
- Factor VIII
- Antithrombin III
- Protein C
Answer: A. ADAMTS13 activity
Explanation:
ADAMTS13 activity is correct. Fever, confusion, low platelets, schistocytes and a high LDH describe thrombotic thrombocytopenic purpura, where ADAMTS13 is severely reduced, usually from an autoantibody. Large von Willebrand multimers then form platelet clots that shred red cells.
Factor VIII is wrong because its deficiency, hemophilia A, causes bleeding without a microangiopathic smear. Antithrombin III is wrong because its deficiency is an inherited tendency toward venous clots, without schistocytes. Protein C is wrong for the same reason: it is a thrombophilia, not a fragmenting hemolytic anemia.
General rule: schistocytes plus thrombocytopenia mean a microangiopathy. Send ADAMTS13 testing and begin plasma exchange without waiting for the result.
For a fuller set of questions on this topic, see our american board of internal medicine certification resource.
How to use these practice tests
Start with the official ABIM material so you know the registration steps, the exam format and the policies that apply to you. Then work backward from your test window and decide how much time each subspecialty area needs.
Begin with a mixed set such as ABIM MCQ or the free ABIM practice test to find your weak areas. Then move to the focused sets, for example Cardiology, Nephrology and Infectious Disease, and spend extra time where you miss questions.
For every missed question, write down the general rule, not just the answer. Read the explanation, then restate why each wrong option fails. Come back to your missed items after a break to check that the rule stuck.
Because the exam runs about 10 hours in four sessions, practise answering in long blocks with short breaks so your stamina matches test day. Near the exam date, reread the official pages for your Pearson appointment and check your registration status.
Free ABIM - American Board of Internal Medicine Study Tools
Interactive ABIM - American Board of Internal Medicine resources on PracticeTestGeeks, free to start:
- ABIM - American Board of Internal Medicine flashcards — review key terms and concepts card by card
- ABIM - American Board of Internal Medicine study guide — topic-by-topic overview of what the exam covers
- ABIM - American Board of Internal Medicine cheat sheet — one-page printable summary for last-minute review
ABIM Exam Flashcards
Click to flip and test your knowledge
🩺What is the primary purpose of ABIM certification?
To demonstrate that a physician has the clinical judgment, skills, and attitudes essential for the delivery of excellent patient care.
START ABIM PRACTICE TEST📅How often must ABIM board certification be renewed?
ABIM Board Certification is generally valid for 10 years, requiring maintenance of certification activities every 2 years.
GET ABIM EXAM PREP🧪Which organization administers the internal medicine board exam?
The American Board of Internal Medicine (ABIM) administers the exam for internal medicine and its subspecialties.
REVIEW ABIM QUESTIONS📝How many questions are on the ABIM internal medicine exam?
The initial certification exam typically consists of approximately 240 multiple-choice questions.
TRY ABIM MOCK EXAM🧠What is MOC in the context of ABIM?
MOC stands for Maintenance of Certification, a program for board-certified physicians to demonstrate ongoing competency.
ACCESS ABIM STUDY GUIDE🏥What is the prerequisite for taking the ABIM exam?
Completion of an accredited internal medicine residency program and a valid medical license are required.
PRACTICE ABIM TEST NOWABIM Exam Study Guide
Our comprehensive ABIM study guide breaks down essential information about the certification process. Explore the tabs below to understand the ABIM boards basics, format, registration details, and more.
Register early to avoid the substantial late fee. Many residency programs will cover or reimburse the initial ABIM exam cost for their residents.
ABIM Test Day Checklist
- ✓Valid Photo ID
- ✓ABIM Appointment Confirmation
- ✓Arrive 30 mins early
- ✓Review ABIM exam policies
- ✓Comfortable clothing (layers)
- ✓Leave electronics in car/locker
- ✓Snacks for break time
- ✓Hydrate well beforehand
Ace Your ABIM Exam Today
Get instant access to free ABIM practice test questions, study guides, and flashcards. Start your journey to becoming board certified now.
To be listed as certified on the ABIM physician portal, you must meet all MOC requirements by their deadlines. Failure to do so will result in a status change to "Not Certified."
ABIM: Pros and Cons
- +ABIM exam preparation strengthens your knowledge across all domains
- +Passing the exam proves competency to employers and clients
- +Study materials and practice tests are widely available
- +Exam-based credentials are portable across states and employers
- +Clear exam objectives help focus your study plan effectively
- −Exam anxiety can affect performance — practice tests help reduce it
- −Registration fees are non-refundable if you miss your test date
- −Limited retake opportunities may apply with waiting periods
- −Exam content updates periodically — use current study materials
- −Testing center availability may require advance scheduling
Pros and Cons at a Glance
| Pros | Cons |
|---|---|
| ABIM exam preparation strengthens your knowledge across all domains | Exam anxiety can affect performance — practice tests help reduce it |
| Passing the exam proves competency to employers and clients | Registration fees are non-refundable if you miss your test date |
| Study materials and practice tests are widely available | Limited retake opportunities may apply with waiting periods |
| Exam-based credentials are portable across states and employers | Exam content updates periodically — use current study materials |
| Clear exam objectives help focus your study plan effectively | Testing center availability may require advance scheduling |
Sample ABIM - American Board of Internal Medicine Practice Questions
Try these questions from our free ABIM - American Board of Internal Medicine practice tests. The correct answer and an explanation follow each question.
Antimicrobial medications and bismuth should be avoided for ____ before testing in order to increase the diagnostic precision of the urea breath test and fecal antigen test.
- A. plavix
- B. 4.5 cm
- C. 28 days
- D. q0.5-1y
Answer: C. 28 days
To improve the diagnostic accuracy of the urea breath test and fecal antigen test for detecting Helicobacter pylori infection, antimicrobial agents and bismuth should be avoided for 28 days before testing. These substances can interfere with the accuracy of the tests and may lead to false-negative results. It is important to withhold any antibiotics, proton pump inhibitors (PPIs), bismuth-containing medications, and other medications that can suppress or eradicate H. pylori during this period to ensure accurate test results. The specific duration of avoidance may vary depending on the specific test being used and the recommendations of the healthcare provider. It's always best to consult with a healthcare professional for specific instructions regarding medication and dietary restrictions before undergoing H. pylori diagnostic testing.
A 32-year-old woman with type 1 diabetes presents with recurrent hypoglycemia, nausea, and weight loss. Morning cortisol is undetectable. What additional test should be performed?
- A. Fasting glucose tolerance test
- B. ACTH stimulation test
- C. 24-hour urinary free cortisol
- D. Dexamethasone suppression test
Answer: B. ACTH stimulation test
The ACTH (cosyntropin) stimulation test is the gold standard for diagnosing primary adrenal insufficiency (Addison disease) by assessing adrenal cortisol response.
A 44-year-old woman presents with polyuria, polydipsia, and a serum sodium of 148 mEq/L. Water deprivation test fails to concentrate urine (Uosm 180 mOsm/kg). After desmopressin administration, urine osmolality rises to 680 mOsm/kg. What is the diagnosis?
- A. Central diabetes insipidus
- B. Nephrogenic diabetes insipidus
- C. Primary polydipsia
- D. SIADH
Answer: A. Central diabetes insipidus
A robust response to desmopressin (urine Osm >50% increase) confirms central DI, where ADH is deficient but renal tubules respond normally.
A 67-year-old man with CLL presents with worsening fatigue and pallor. Hemoglobin is 7.1 g/dL, MCV 92, reticulocyte count 8%. Direct antiglobulin test (DAT) is positive for IgG. LDH is elevated. What is the diagnosis?
- A. Autoimmune hemolytic anemia (AIHA)
- B. Aplastic anemia
- C. Myelodysplastic syndrome
- D. Iron deficiency anemia
Answer: A. Autoimmune hemolytic anemia (AIHA)
Warm AIHA is the most common hematologic complication of CLL, presenting with a positive DAT for IgG, elevated LDH, and increased reticulocyte count reflecting hemolysis.
Take the full ABIM - American Board of Internal Medicine practice test
For a fuller set of questions on this topic, see our abim certification lookup resource.
For a fuller set of questions on this topic, see our abim physician lookup resource.
ABIM Questions and Answers
Sources & last verified
- American Board of Internal Medicine — time limit, passing score, validity, delivery (official source). “**Duration**: The Internal Medicine Certification Examination lasts approximately 10 hours, divided into four sessions.” Verified Oct 25, 2026.
- American Board of Internal Medicine — exam fee, late registration deadline (official source). “| Internal Medicine | $1,430 |” Verified Oct 25, 2026.
- American Board of Internal Medicine — eligibility (official source). “To be admitted to the ABIM Internal Medicine Certification Examination, physicians must have satisfactorily completed 36 calendar months, including vacation time, of U.S. or Canadian…” Verified Oct 25, 2026 · source checked Oct 18, 2026.
How we verify: editorial & fact-checking policy. Report an error: contact us.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- abim.org — Test delivery, late registration, passing score, registration deadline, registration, score release, test dates, time limit, score validity, eligibility · verified Oct 2026