Anemia: Diagnosis and Causes

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Questions and Answers

A patient presents with fatigue, pallor, and shortness of breath. Initial lab results show a low hemoglobin level and reduced mean corpuscular volume (MCV). Which type of anemia is MOST likely?

  • Aplastic anemia
  • Iron deficiency anemia (correct)
  • Sickle cell anemia
  • Vitamin B12 deficiency anemia

Which of the following is the MOST common cause of iron deficiency anemia in premenopausal women?

  • Heavy menstrual bleeding (correct)
  • Chronic kidney disease
  • Dietary iron overload
  • Gastrointestinal bleeding

A patient with a history of gastric bypass surgery presents with signs of anemia. Which vitamin deficiency is MOST likely contributing to their condition?

  • Vitamin A
  • Vitamin E
  • Vitamin C
  • Vitamin B12 (correct)

Which laboratory finding is MOST indicative of hemolytic anemia?

<p>Increased reticulocyte count (B)</p> Signup and view all the answers

A patient with chronic kidney disease (CKD) develops anemia. What is the PRIMARY mechanism by which CKD leads to anemia?

<p>Decreased erythropoietin production (C)</p> Signup and view all the answers

A patient is diagnosed with anemia of chronic disease. Which of the following best describes the underlying pathophysiology of this condition?

<p>Impaired iron utilization due to inflammation (D)</p> Signup and view all the answers

Which of the following is the MOST appropriate initial treatment for severe symptomatic anemia (hemoglobin <7 g/dL) in a stable patient?

<p>Red blood cell transfusion (D)</p> Signup and view all the answers

A patient's lab results show elevated levels of methylmalonic acid (MMA) and homocysteine. Which vitamin deficiency is MOST likely?

<p>Vitamin B12 (A)</p> Signup and view all the answers

Which of the following anemias is characterized by the presence of macrocytes (large red blood cells) in the peripheral blood smear?

<p>Megaloblastic anemia (B)</p> Signup and view all the answers

A patient of Mediterranean descent presents with microcytic anemia. Iron studies are normal. Which of the following conditions is the MOST likely cause?

<p>Alpha or beta thalassemia (D)</p> Signup and view all the answers

Flashcards

What is Anemia?

A condition characterized by a deficiency of red blood cells or hemoglobin in the blood, resulting in pallor and fatigue.

Iron-Deficiency Anemia

Caused by iron deficiency, leading to reduced hemoglobin production.

Vitamin B12 Deficiency Anemia

Caused by a deficiency of vitamin B12, which is needed for red blood cell production.

Hemolytic Anemia

The body destroys red blood cells faster than it produces them.

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Sickle Cell Anemia

A genetic disorder causing misshapen red blood cells that block blood flow.

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Hematocrit

A blood test measuring the proportion of red blood cells in your blood.

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Hemoglobin

The protein in red blood cells that carries oxygen.

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Common Anemia Symptoms

Fatigue, pale skin, shortness of breath, dizziness, and headache.

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Anemia Treatment Options

Iron supplements, B12 injections, blood transfusions, or bone marrow transplant.

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Aplastic Anemia

Anemia due to decreased or defective production of red blood cells.

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