18 Questions
What is the primary function of iron in the body?
To transport oxygen throughout the body
What percentage of the body's total iron content is found in the blood?
75%
What is the recommended fasting time before a serum iron test?
12 hours
Which of the following is NOT a form in which iron is present in the body?
Insulin
What is the purpose of measuring serum iron levels?
To assess iron deficiency
What type of anemia results from iron deficiency?
Microcytic hypochromic anemia
Which of the following is NOT a function of iron-sulfur clusters in the body?
Protein synthesis
Which protein is responsible for transporting iron in the blood?
Transferrin
What is the key function of hepcidin in iron regulation?
Decreases iron levels by inhibiting dietary iron absorption
Which organs can be damaged by progressive accumulation of iron due to hemochromatosis?
Liver, heart, and pancreas
Where is iron primarily stored in the human body?
Liver, spleen, marrow, and skeletal muscle
What are common symptoms of iron deficiency?
Burning sensation in the tongue, sores at the corners of the mouth
Which of the following statements about ferritin is correct?
It is a storage form of iron in the body.
What does a high Total Iron Binding Capacity (TIBC) level indicate?
Iron deficiency
Which of the following conditions can lead to high serum iron levels?
Multiple blood transfusions
What is the Recommended Dietary Allowance (RDA) for iron for non-pregnant adult women aged 19-50 years?
18 mg/day
Which of the following conditions can lead to low serum iron levels?
Pregnancy
What is the normal reference range for serum iron levels in men?
65 to 176 μg/dL
This quiz provides an overview of the Serum Iron test, which measures the amount of circulating Iron bound to transferrin. Learn how Iron is absorbed from food in the intestine, transported by Transferrin, and used for the production of healthy red blood cells. Understand the importance of Iron for hemoglobin and oxygen transportation in the body.
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