Serum Iron Test Overview

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Questions and Answers

What is the primary function of iron in the body?

  • To maintain healthy skin and nails
  • To metabolize fats and carbohydrates
  • To regulate blood pressure
  • To transport oxygen throughout the body (correct)

What percentage of the body's total iron content is found in the blood?

  • 90%
  • 75% (correct)
  • 50%
  • 25%

What is the recommended fasting time before a serum iron test?

  • 10 hours
  • 12 hours (correct)
  • 24 hours
  • 8 hours

Which of the following is NOT a form in which iron is present in the body?

<p>Insulin (D)</p> Signup and view all the answers

What is the purpose of measuring serum iron levels?

<p>To assess iron deficiency (B)</p> Signup and view all the answers

What type of anemia results from iron deficiency?

<p>Microcytic hypochromic anemia (A)</p> Signup and view all the answers

Which of the following is NOT a function of iron-sulfur clusters in the body?

<p>Protein synthesis (A)</p> Signup and view all the answers

Which protein is responsible for transporting iron in the blood?

<p>Transferrin (A)</p> Signup and view all the answers

What is the key function of hepcidin in iron regulation?

<p>Decreases iron levels by inhibiting dietary iron absorption (A)</p> Signup and view all the answers

Which organs can be damaged by progressive accumulation of iron due to hemochromatosis?

<p>Liver, heart, and pancreas (C)</p> Signup and view all the answers

Where is iron primarily stored in the human body?

<p>Liver, spleen, marrow, and skeletal muscle (A)</p> Signup and view all the answers

What are common symptoms of iron deficiency?

<p>Burning sensation in the tongue, sores at the corners of the mouth (A)</p> Signup and view all the answers

Which of the following statements about ferritin is correct?

<p>It is a storage form of iron in the body. (A)</p> Signup and view all the answers

What does a high Total Iron Binding Capacity (TIBC) level indicate?

<p>Iron deficiency (A)</p> Signup and view all the answers

Which of the following conditions can lead to high serum iron levels?

<p>Multiple blood transfusions (C)</p> Signup and view all the answers

What is the Recommended Dietary Allowance (RDA) for iron for non-pregnant adult women aged 19-50 years?

<p>18 mg/day (B)</p> Signup and view all the answers

Which of the following conditions can lead to low serum iron levels?

<p>Pregnancy (D)</p> Signup and view all the answers

What is the normal reference range for serum iron levels in men?

<p>65 to 176 μg/dL (C)</p> Signup and view all the answers

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