Total Iron Binding Capacity (TIBC) Lab Test and Iron Deficiency Anemia Causes
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Questions and Answers

Where is about 80% of body phosphorus present?

  • Liver
  • Prostate
  • Skeleton (correct)
  • Skin

Which hormone is responsible for decreasing blood calcium levels?

  • Parathyroid Hormone (PTH)
  • Aldosterone
  • Triiodothyronine (T3)
  • Calcitonin (correct)

Which of the following is a function of Parathyroid Hormone (PTH) regarding blood calcium levels?

  • Bone mineralization
  • Renal tubular calcium excretion
  • Intestinal calcium excretion
  • Bone resorption (correct)

What are the two groups minerals may be divided into according to body needs?

<p>Macro-minerals and Micro-minerals (B)</p> Signup and view all the answers

Which source is considered the best source of iron?

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

What enhances iron absorption in the body?

<p>Ascorbic acid (Vitamin C) (C)</p> Signup and view all the answers

In which conditions does iron absorption increase?

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

Which form of iron absorption is inhibited after total or subtotal gastrectomy?

<p>+3 Fe (C)</p> Signup and view all the answers

What is the main function of ceruloplasmin in the body?

<p>Copper binding</p> Signup and view all the answers

What are the causes of iron deficiency anemia related to impaired absorption?

<p>Steatorrhea, abdominal surgery</p> Signup and view all the answers

What are the main biochemical changes observed in iron deficiency anemia?

<p>Decreased plasma iron, increased plasma TIBC, decreased plasma ferritin</p> Signup and view all the answers

What are the primary sources of copper in the diet?

<p>Nuts, liver, kidney</p> Signup and view all the answers

What is the main function of copper in the body related to the nervous system?

<p>Maintains myelin</p> Signup and view all the answers

What are the primary causes of iron overload in the body?

<p>Repeated blood transfusion, intravenous iron administration</p> Signup and view all the answers

What are the biochemical changes associated with iron overload?

<p>Increased plasma iron, decreased plasma TIBC, increased plasma ferritin</p> Signup and view all the answers

What is the main form of copper found in plasma that comprises 85% of total plasma copper?

<p>Ceruloplasmin</p> Signup and view all the answers

What are the functions of copper in the body related to hemoglobin?

<p>Essential for hemoglobin synthesis</p> Signup and view all the answers

What is the primary function of albumin in relation to copper in the body?

<p>Loosely bound form of copper</p> Signup and view all the answers

Flashcards

Where is most of the body's phosphorus found?

Approximately 80% of the body's phosphorus is stored in the skeletal system.

What hormone lowers blood calcium levels?

Calcitonin is a hormone that helps regulate blood calcium levels by decreasing their concentration.

How does PTH affect blood calcium levels?

Parathyroid hormone (PTH) stimulates bone resorption, which releases calcium from bones into the bloodstream.

How are minerals categorized based on body needs?

Minerals are classified into macro-minerals (needed in large amounts) and micro-minerals (needed in smaller amounts).

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What's the best source of iron?

Liver is considered an excellent source of iron, an essential mineral for hemoglobin production.

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What helps increase iron absorption?

Ascorbic acid, also known as Vitamin C, enhances iron absorption in the digestive system.

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When does iron absorption increase?

Individuals with anemia, a condition characterized by low red blood cell count, experience increased iron absorption to compensate for the deficiency.

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Which iron form is affected by gastrectomy?

Ferric iron (+3 Fe) absorption is inhibited after total or subtotal gastrectomy due to the removal of the stomach, which plays a crucial role in iron absorption.

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What's the main function of ceruloplasmin?

Ceruloplasmin is a protein that binds copper in the blood, facilitating its transport and utilization.

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How can impaired absorption cause iron deficiency anemia?

Impaired absorption due to conditions like steatorrhea (fatty stools) and abdominal surgery can lead to iron deficiency anemia.

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What are the biochemical changes in iron deficiency anemia?

Iron deficiency anemia is characterized by decreased plasma iron levels, increased total iron-binding capacity (TIBC), and decreased plasma ferritin levels.

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What are the main sources of dietary copper?

Nuts, liver, and kidney are prominent sources of copper in the diet.

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What's copper's function in the nervous system?

Copper plays a critical role in maintaining myelin, the protective sheath around nerve fibers, which is crucial for proper nerve function.

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What causes iron overload in the body?

Repeated blood transfusions and intravenous iron administration can lead to iron overload, a dangerous condition where the body accumulates excessive iron.

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What are the biochemical changes in iron overload?

Iron overload is characterized by increased plasma iron levels, decreased total iron-binding capacity (TIBC), and increased plasma ferritin levels.

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What is the main form of copper in plasma?

Ceruloplasmin is the main form of copper found in plasma, comprising approximately 85% of total plasma copper.

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What's copper's role in hemoglobin?

Copper is essential for hemoglobin synthesis, the process of producing red blood cells, which carry oxygen throughout the body.

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What is albumin's function related to copper?

Albumin serves as a loosely bound form of copper in the body, playing a role in its transport and distribution.

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