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Kaplan Qbank USMLE



Author5 Posts
  #1

A 15-year-old girl complains of fatigue. Laboratory results indicate that her serum iron is 7.5 mmol/L. Which of the following proteins will most likely be elevated by the indicated therapy?


Answer Choices Correct answer Your answer
A. Albumin
B. Ceruloplasmin
C. Ferritin
D. Haptoglobin
E. Transferrin



  #2

C?

  #3

c-because the therapy will tend to raise her iron stores

  #4

Option E (Transferrin) is correct. This patient has iron deficiency anemia and requires iron supplements. Transferrin is a serum protein that transports iron to the tissues.

Option A (Albumin) is incorrect. Albumin is not involved in the transport of iron.

Option B (Ceruloplasmin) is incorrect. Ceruloplasmin oxidized iron in the serum to Fe3+, which is the form that binds to transferrin.

Option C (Ferritin) is incorrect. Ferritin is the protein apoferritin with iron bound to it. It is a storage protein found in the tissues.

Option D (Haptoglobin) is incorrect. Haptoglobin is a plasma glycoprotein that binds free (extracorpuscular) hemoglobin preventing it from passing through the glomerulus.




  #5

yeah its E bcos the need for iron is immediate & only after the current needs are fulfilled will the body store excess iron as ferritin.

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