Medical Licensing exam prep

USMLE Step 3 Practice Test 2026-2027 and Free Sample Questions

2026-2027 exam practice page

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USMLE Step 3

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Question 1 Ambulatory Care

Question 1: Ambulatory Care

A 58-year-old man with type 2 diabetes has an office blood pressure of 148/92 mm Hg confirmed on repeat measurement. His urine albumin to creatinine ratio is 80 mg/g. Which antihypertensive class is the most appropriate first-line choice?

Question 2 Inpatient Medicine

Question 2: Inpatient Medicine

A 70-year-old woman is hospitalized for community-acquired pneumonia and treated with ceftriaxone and azithromycin. On day 4 she develops profuse watery diarrhea and abdominal cramping. Stool testing is positive for Clostridioides difficile toxin. Which is the most appropriate treatment?

Question 3 Cardiology Management

Question 3: Cardiology Management

A 64-year-old man with heart failure and reduced ejection fraction is on lisinopril, carvedilol, and furosemide. His blood pressure is 118/72 mm Hg, potassium is 4.2 mEq/L, and creatinine is normal. Which medication addition is most likely to reduce his mortality?

Question 4 Emergency Management

Question 4: Emergency Management

A 45-year-old man presents with crushing substernal chest pain for 40 minutes. ECG shows ST-segment elevation in leads II, III, and aVF. The nearest facility capable of percutaneous coronary intervention is 20 minutes away. Which is the most appropriate next step?

Question 5 Preventive Medicine

Question 5: Preventive Medicine

A 55-year-old man with a 30 pack-year smoking history quit smoking 8 years ago. He has no respiratory symptoms. Which screening test should be recommended?

Question 6 Endocrine Management

Question 6: Endocrine Management

A 38-year-old woman reports fatigue, weight gain, cold intolerance, and constipation. Her TSH is 14 mIU/L and free T4 is low. Which is the most appropriate management?

Question 7 Ambulatory Pediatrics

Question 7: Ambulatory Pediatrics

A 2-year-old child is brought for a well-child visit. The parents have not started routine fluoride. The local water supply is not fluoridated. Which is the most appropriate recommendation?

Question 8 Inpatient Geriatrics

Question 8: Inpatient Geriatrics

An 82-year-old hospitalized woman becomes acutely confused and inattentive overnight, with symptoms fluctuating through the morning. She has no focal neurologic deficits. Which is the most appropriate initial step?

Question 9 Womens Health

Question 9: Womens Health

A 29-year-old woman at 10 weeks gestation is found to have asymptomatic bacteriuria with Escherichia coli on a screening urine culture. Which is the most appropriate management?

Question 10 Psychiatry Management

Question 10: Psychiatry Management

A 26-year-old man is brought to the emergency department after a suicide attempt by overdose. He is medically stable but voices ongoing intent to die and has a specific plan. Which is the most appropriate disposition?

Question 11 Surgery Management

Question 11: Surgery Management

A 60-year-old man returns 2 days after an outpatient inguinal hernia repair with fever, increasing incisional pain, and erythema spreading from the wound. The wound has purulent drainage. Which is the most appropriate management?

Question 12 Hematology Management

Question 12: Hematology Management

A 72-year-old man with atrial fibrillation has a CHA2DS2-VASc score of 4 and no contraindications to anticoagulation. He has good renal function. Which is the most appropriate therapy to reduce stroke risk?

Question 13 Renal Management

Question 13: Renal Management

A 50-year-old man with a kidney stone passes a stone that analysis shows is composed of calcium oxalate. He has had three stones in 5 years. Which is the most appropriate long-term preventive recommendation?

Question 14 Infectious Disease

Question 14: Infectious Disease

A 34-year-old man with newly diagnosed HIV infection has a CD4 count of 150 cells/mm3. In addition to antiretroviral therapy, which prophylaxis should be started?

Question 15 Pulmonary Management

Question 15: Pulmonary Management

A 67-year-old woman with COPD presents with increased dyspnea, increased sputum volume, and a change in sputum to a purulent color over 2 days. She is afebrile and her oxygen saturation is 91 percent. Which is the most appropriate treatment in addition to inhaled bronchodilators?

Question 16 Gastroenterology Management

Question 16: Gastroenterology Management

A 48-year-old man undergoing his first screening colonoscopy has two 6 mm tubular adenomas removed. The remainder of the examination is normal. When should his next colonoscopy be performed?

Question 17 Dermatology Management

Question 17: Dermatology Management

A 70-year-old man has a new 8 mm pigmented skin lesion with asymmetry, irregular borders, and color variation. Which is the most appropriate next step?

Question 18 Neurology Management

Question 18: Neurology Management

A 68-year-old man presents 90 minutes after sudden onset of right-sided weakness and aphasia. CT of the head shows no hemorrhage. His blood pressure is 170/95 mm Hg and glucose is normal. Which is the most appropriate next step?

Question 19 Preventive Medicine

Question 19: Preventive Medicine

A 60-year-old man with no symptoms and average risk asks about colorectal cancer screening. He has never been screened. Which is an appropriate screening option to offer?

Question 20 Inpatient Medicine

Question 20: Inpatient Medicine

A 75-year-old hospitalized woman with limited mobility is at high risk for venous thromboembolism and has no active bleeding or contraindication. Which is the most appropriate prophylaxis?

Question 1 of 20

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About this practice test

What this 2026-2027 USMLE Step 3 Practice Test covers

This practice test is designed for students and professionals preparing for USMLE Step 3 who want stronger exam-day confidence, better explanation quality, and more useful answer review than a generic test bank.

Focus areas include USMLE Step 3 practice test, USMLE Step 3 practice questions and USMLE Step 3 free practice test. Focus areas include diagnosis, management, pharmacology, ethics, along with scenario-based judgment, careful review of why distractors are less correct, and real-world analogies that help the key ideas stick.

Work through up to 50 USMLE-style questions built around diagnosis, management, and the wording patterns students usually miss on the first read.
Use answer-by-answer rationales to learn why the correct option wins and why weaker distractors fail in Medical Licensing exam situations.
Review 3 real-world analogies, topic article cards, and source checks after each question so pharmacology and ethics feel easier to recognize under pressure.
Build timing, confidence, and recall with scenario-based practice that feels closer to the real USMLE Step 3 than a generic flashcard dump.

Prepare for the USMLE Step 3 with realistic USMLE practice questions, timed review, detailed rationales, and real-world analogies that make harder Medical Licensing concepts easier to remember.

This practice test is designed for students and professionals preparing for USMLE Step 3 who want stronger exam-day confidence, better explanation quality, and more useful answer review than a generic test bank.

Focus areas include diagnosis, management, pharmacology, ethics, along with scenario-based judgment, careful review of why distractors are less correct, and real-world analogies that help the key ideas stick.

What you will practice on this page

  • Work through up to 50 USMLE-style questions built around diagnosis, management, and the wording patterns students usually miss on the first read.
  • Use answer-by-answer rationales to learn why the correct option wins and why weaker distractors fail in Medical Licensing exam situations.
  • Review 3 real-world analogies, topic article cards, and source checks after each question so pharmacology and ethics feel easier to recognize under pressure.
  • Build timing, confidence, and recall with scenario-based practice that feels closer to the real USMLE Step 3 than a generic flashcard quiz.

How to use this exam to study smarter

  1. Start with the 20-question free sample to spot whether diagnosis or management is slowing you down before you buy the full exam.
  2. After each block, review every rationale and the 3 real-world analogies, topic article cards, and source checks so the tested pattern behind pharmacology becomes easier to remember.
  3. Retake the full USMLE Step 3 practice test in timed mode and focus on cleaner decision-making, not just memorizing the last answer.

Students often land on this page after searching for terms like USMLE Step 3 practice test, USMLE Step 3 practice questions, USMLE Step 3 free practice test, USMLE Step 3 study guide, USMLE Step 3 diagnosis questions, USMLE Step 3 management review. That is why the free sample gives you 10 questions first and the full version goes deeper into the tested patterns.

Frequently asked questions

Is this USMLE Step 3 Practice Test built for the 2026-2027 exam cycle?

Yes. This PracticeTestVault page is positioned for 2026-2027 prep for USMLE Step 3 and is written as independent practice material. It is not an official exam, not copied from a live test, and not endorsed by the exam owner.

Can I try USMLE Step 3 Practice Test before I buy?

Yes. You can take 20 free sample questions before checkout. Those sample questions are separate preview questions and are not counted as part of the paid 300-question bank.

What is included with single USMLE Step 3 access?

Single-exam access unlocks one 300-question bank for this exact exam, a timed practice flow, instant score reporting, answer-level rationales, option-by-option review, and 3 real-world analogies, topic article cards, and source checks per question to make the concepts easier to remember.

How do the same-exam practice packs work?

Practice packs stay focused on this exact exam type. A 5-form pack gives 5 separate paid forms, a 10-form pack gives 10 forms, and a 15-form pack gives 15 forms. Each paid form has 300 questions, so students can get more full-length practice without mixing unrelated exams.

Does PracticeTestVault guarantee that I will pass?

No practice site can honestly guarantee a passing score. This USMLE Step 3 Practice Test is designed to help you study more effectively by combining timed practice, a 70% suggested passing benchmark, detailed rationales, and memory-building analogies so you can find weak areas before test day.

Question-linked study articles

Study articles that support USMLE Step 3 prep

These guides come from this exam's question topics. Use them after a missed question to review the concept, answer reasoning, distractors, and sources.

PracticeTestVault review illustration for Diagnosis on USMLE Step 3 Review: Diagnosis

Question topic: Diagnosis

USMLE Step 3 Review: Diagnosis

July 16, 2026 2 min read

Review diagnosis for this USMLE Step 3 question with the key prompt clue, correct-answer reasoning, distractor checks, and sources to verify next.

Read article
PracticeTestVault review illustration for Ethics on USMLE Step 3 Review: Ethics

Question topic: Ethics

USMLE Step 3 Review: Ethics

July 16, 2026 2 min read

Review ethics for this USMLE Step 3 question with the key prompt clue, correct-answer reasoning, distractor checks, and sources to verify next.

Read article
PracticeTestVault review illustration for Study strategy on USMLE Step 3 Review: Study strategy

Question topic: Study strategy

USMLE Step 3 Review: Study strategy

July 16, 2026 2 min read

Review study strategy for this USMLE Step 3 question with the key prompt clue, correct-answer reasoning, distractor checks, and sources to verify next.

Read article
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