Anaemia

Hypoproliferative anaemia is characterised by a reticulocyte count of less than 2.5%

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Study material on Anaemia

Practice questions on Anaemia

A 68-year-old woman is found to have 2.1 g/dL of monoclonal IgG in her serum on a routine check. She has no bone pain, no anaemia, no Bence Jones proteinuria, and bone marrow shows 8% plasma cells. She is asymptomatic. What is the risk of this condition progressing to symptomatic myeloma?

Answer: B. This is MGUS — the most common plasma cell proliferation, found in 1–3% of healthy persons over 50. Despite its name, MGUS is a precursor lesion that progresses to symptomatic plasma cell tumour at approximately 1% per year. The clonal plasma cells in MGUS already contain the same chromosomal translocations as full-blown myeloma. Diagnosis of MGUS requires less than 3 g/dL monoclonal protein and no Bence Jones protei

A 65-year-old man presents with massive splenomegaly and anaemia. Peripheral blood smear shows teardrop cells, nucleated red cells, and immature myeloid cells. Bone marrow trephine is hypocellular and fibrotic. Which of the following BEST explains the origin of the marrow fibrosis?

Answer: B. This is primary myelofibrosis — teardrop cells, leukoerythroblastosis, and fibrotic marrow. A critical concept is that the fibroblasts are NOT part of the neoplastic clone. The fibrosis is secondary — stimulated by PDGF and TGF-β released from neoplastic megakaryocytes. BCR-ABL is the driver in CML, not primary myelofibrosis. IL-6 drives myeloma cell proliferation and bone resorption, not marrow fibrosis. ---

A patient presents with recurrent infections, petechiae, and anaemia. A bone marrow biopsy shows reduced cellularity. What is the most likely diagnosis?

Answer: A. The triad of infections (low WBC), petechiae (low platelets), and anaemia (low RBC) reflects pancytopenia; combined with a hypocellular marrow, this is diagnostic of aplastic anaemia — failure of the marrow to produce blood cells of all lineages. ---

The MCV in iron deficiency anaemia is

Answer: C. Low MCV (microcytic anaemia) occurs because insufficient iron limits haemoglobin synthesis, reducing RBC size. ---

Which iron study pattern is seen in anaemia of chronic disease?

Answer: B. Inflammation sequesters iron in macrophages (high ferritin as acute phase reactant), reduces serum iron, and decreases TIBC — distinguishing it from iron deficiency. ---

The most common cause of macrocytic anaemia in the developed world is

Answer: C. Alcohol causes macrocytosis through direct toxic effects on the bone marrow and poor nutrition; it is the most common cause overall in many populations. ---

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