Answer to Question 1
Correct Answer: 1
Rationale 1: The three categories of blood loss are hemorrhage, increased erythrocyte destruction, and impaired erythrocyte production.
Rationale 2: Anemia is not caused by too much caffeine.
Rationale 3: Anemia is not caused by heart failure or fluid overload.
Rationale 4: A well-balanced vegetarian diet will not result in anemia.
Answer to Question 2
Correct Answer: 1
Rationale 1: The most common cause of vitamin B12 deficiency (pernicious anemia) is absence of intrinsic factor, a protein secreted by stomach cells. This protein is required for vitamin B12 to be absorbed from the intestine. Symptoms of pernicious anemia involve the nervous system, and include memory loss, confusion, tingling or numbness in the limbs, and mood disturbances.
Rationale 2: A decrease in red blood cells does not occur with pernicious anemia.
Rationale 3: Jaundice and tarry stools do not occur with pernicious anemia.
Rationale 4: Low hemoglobin and hematocrit counts do not occur with pernicious anemia. A decrease in red blood cells does not occur with pernicious anemia.
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