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Hematology Flashcards

6 cards from real ASCP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which cell type is characterized by a bilobed nucleus connected by a thin strand and is elevated in allergic reactions?

    Answer: Eosinophil

    Eosinophils have bilobed nuclei and are elevated in allergic reactions and parasitic infections.

  2. A patient with iron deficiency anemia would most likely show which RBC morphology?

    Answer: Microcytosis and hypochromia

    Iron deficiency anemia causes microcytic, hypochromic red blood cells due to impaired hemoglobin synthesis.

  3. What is the normal reference range for platelet count in adults?

    Answer: 150,000–400,000/µL

    The normal adult platelet count is 150,000–400,000 per microliter.

  4. Which hemoglobin type predominates in adults and consists of two alpha and two beta chains?

    Answer: HbA1

    HbA1 (α2β2) makes up approximately 95–98% of total hemoglobin in normal adults.

  5. A peripheral blood smear shows hypersegmented neutrophils. This finding is most consistent with:

    Answer: Megaloblastic anemia

    Hypersegmented neutrophils (5+ lobes) are a hallmark of megaloblastic anemia caused by B12 or folate deficiency.

  6. Which test is used to confirm the diagnosis of polycythemia vera by measuring the total red cell mass?

    Answer: Chromium-51 RBC mass study

    The chromium-51 RBC mass study directly measures total red cell volume to confirm true polycythemia.