FSMB / NBME

Active

United States Medical Licensing Examination (USMLE)

Medical Licensure

Questions

Duration

540h

Passing Score

60%

Negative Marking

-0

Exam Questions

Liver

Spleen

Bone marrow

Lymph nodes

ExplanationIn adults, the production of blood cells occurs primarily within the red bone marrow.

View Source Material

Calcitonin

Thyroxine

Parathyroid hormone

Insulin

ExplanationParathyroid hormone (PTH) increases blood calcium by acting on bones, kidneys, and intestines.

View Source Material

Storing neurotransmitters

Speeding up nerve impulse transmission

Preventing neuron cell death

Repairing damaged axons

ExplanationMyelin acts as an electrical insulator, allowing for saltatory conduction of action potentials.

View Source Material

Stable angina

Anterior wall myocardial infarction

Pericarditis

Pulmonary embolism

ExplanationST-segment elevation in the precordial leads (V2-V4) is classic for an acute myocardial infarction involving the anterior wall of the heart.

View Source Material

Beta-blockers

ACE inhibitors

Calcium channel blockers

Loop diuretics

ExplanationACE inhibitors are preferred in diabetic patients because they reduce intraglomerular pressure and provide long-term nephroprotection.

View Source Material

Glycolysis

Oxidative phosphorylation

Fermentation

The urea cycle

ExplanationOxidative phosphorylation is the metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing energy which is used to produce ATP.

View Source Material

Rickets

Scurvy

Pellagra

Beriberi

ExplanationVitamin C deficiency leads to a defect in collagen synthesis, resulting in the connective tissue disease known as scurvy.

View Source Material

Mitochondria

Ribosome

Lysosome

Golgi apparatus

ExplanationRibosomes are the cellular structures that translate mRNA into protein chains.

View Source Material

G1 phase

S phase

G2 phase

M phase

ExplanationDNA synthesis or replication occurs specifically during the S (synthesis) phase of interphase.

View Source Material

Missense mutation

Nonsense mutation

Silent mutation

Frameshift mutation

ExplanationA nonsense mutation changes an amino acid codon into a premature stop codon, truncating the protein.

View Source Material

United States Medical Licensing Examination (USMLE) paper pattern infographic: subject-wise question distribution across 50 MCQs, 540h duration, −0 negative marking per wrong answer — United States Medical Licensing Examination (USMLE) — subject-wise question distribution, per the official syllabus

Student Reviews

No reviews yet — take this exam and be the first to review it!

United States Medical Licensing Examination (USMLE) — Frequently Asked Questions

How many questions are in the United States Medical Licensing Examination (USMLE) practice test?

This practice test currently has 50 MCQs, and every question includes the correct answer with an explanation.

How long is the United States Medical Licensing Examination (USMLE) mock test?

The full mock runs for 540h under real exam timing, just like the actual paper.

Is there negative marking in this test?

No negative marking is applied in this practice test. The rule for the real exam is announced in the official advertisement.

What score do I need to pass?

The passing score in this simulation is 60%, but for competitive merit you should aim well above it.

Is United States Medical Licensing Examination (USMLE) preparation free on PrepPro?

Yes — the questions, explanations and full timed mock test are all free. You can start practising right from this page.

How do I prepare for United States Medical Licensing Examination (USMLE) online?

Practise the syllabus-based MCQs, then sit the full timed mock test and use your result analytics to find and repeat weak topics — all of it starts free from this page.

Can I retake the United States Medical Licensing Examination (USMLE) mock test?

Yes — you can retake the mock test as many times as you like; every attempt is saved separately in your history so you can track your improvement.

Continue your preparation

Subject-wise MCQsPractice topic-by-topic with answers and explanations.Past PapersSolve verified past-paper questions by exam.Check Your Age EligibilityFree age calculator — your exact age in years, months and days for the age limit.Active ExamsExams currently open for application.