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1. Which of the following is NOT a component of a complete blood count
(CBC)?
A. Hemoglobin
B. Platelet count
C. White blood cell count
D. Creatinine
Answer: D. Creatinine
Rationale: A complete blood count typically includes the measurement of
hemoglobin, platelet count, and white blood cell count. Creatinine is a
marker of kidney function, not part of a CBC.
2. Which of the following is a characteristic of leukemia?
A. Decreased red blood cell count
B. Increased platelet count
C. Presence of blast cells in the blood
D. Elevated lymphocyte count
Answer: C. Presence of blast cells in the blood
Rationale: Leukemia is characterized by the presence of blast cells in the
blood, which are immature white blood cells. This can lead to a decrease in
the number of normal blood cells.
3. A patient presents with a microcytic, hypochromic anemia. Which of the
following conditions would be most likely to cause this type of anemia?
A. Iron-deficiency anemia
B. Sickle cell anemia
C. Thalassemia
D. Vitamin B12 deficiency anemia
Answer: A. Iron-deficiency anemia
Rationale: Iron-deficiency anemia is characterized by small, pale red bloodÂÂ
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