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Smartly Prepare Exam with Free Online USMLE Practice Test

We offer the latest USMLE practice test designed for free and effective online United States Medical Licensing Examination certification preparation. It's a simulation of the real USMLE exam experience, built to help you understand the structure, complexity, and topics you'll face on exam day.

Exam Code: USMLE
Exam Questions: 630
United States Medical Licensing Examination
Updated: 08 Jul, 2025
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Practicing : 1 - 5 of 630 Questions
Question 1

A 9-month-old male is evaluated for lactic acidosis and increased levels of serum alanine. He is diagnosed with pyruvate dehydrogenase complex deficiency and placed on a special diet by the physician. This special diet most likely consists of

Options :
Answer: D
Question 2

Another name for Vitamin B1 is ____. 

Options :
Answer: A
Question 3

An ejection fraction can be calculated as: 

Options :
Answer: C
Question 4

Which of the following is the outermost layer of the epidermis? 

Options :
Answer: B
Question 5

Which of the following is not considered a component of kidney stones?

Options :
Answer: D
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Practicing : 1 - 5 of 630 Questions

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