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United States Medical Licensing Examination

Exam Details

  • Exam Code
    :USMLE
  • Exam Name
    :United States Medical Licensing Examination
  • Certification
    :USMLE Certifications
  • Vendor
    :USMLE
  • Total Questions
    :622 Q&As
  • Last Updated
    :Apr 13, 2025

USMLE USMLE Certifications USMLE Questions & Answers

  • Question 321:

    During phase 3 of the myocardial action potential which ion is moving the most?

    A. K+

    B. Ca+

    C. Na+

    D. Ca2+

  • Question 322:

    An ejection fraction can be calculated as:

    A. SV/TPR

    B. CO/TPR

    C. SV/EDV

    D. CO/EDV

  • Question 323:

    Which of the following is not a bradykinin effect?

    A. Elevated capillary permeability

    B. Elevated pain levels

    C. Elevated vasodilation response

    D. Elevated prothrombin secretion

  • Question 324:

    Which of the following is not generally associated with a 2nd degree (Mobitz Type 1) AV block?

    A. Usually asymptomatic

    B. Nonsequential (P wave then QRS complex)

    C. Increased PR segment/interval

    D. 70% Fatal

  • Question 325:

    An S3 heart sound is often associated with?

    A. CHF

    B. COPD

    C. Atrial fib.

    D. Ventricular fib.

  • Question 326:

    Mean arterial pressure is the product of:

    A. TPR x SV

    B. TPR x CO

    C. CO/SV

    D. SV/EDV

  • Question 327:

    Angiotensin I is changed by which of the following into Angiotensin II?

    A. ACE

    B. AVT

    C. Pepsin

    D. Adenosine

  • Question 328:

    Which of the following is not a cause of peripheral edema?

    A. Increased capillary permeability

    B. Reduced levels of plasma proteins

    C. Heart failure

    D. Decreased capillary output

  • Question 329:

    Which of the following during an electrocardiogram is associated with hypokalemia?

    A. QRS complex

    B. U wave

    C. PR segment

    D. ST segment

  • Question 330:

    Which of the following is not directly related to a drug toxicity of Ibuprofen?

    A. Nausea

    B. Renal dysfunction

    C. Anemia

    D. Muscle wasting

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