Hematology Practice Questions

Q: A young female presented with iron deficiency anemia. Which of the following is FALSE?

Decreased TIBC. In Iron Deficiency Anemia (IDA), the body’s iron stores are depleted, leading to characteristic biochemical and hematological changes [1]. ### **Why Option B is False (The Correct Answer)** In IDA, **Total Iron Binding Capacity (TIBC) is INCREASED**, not decreased. TIBC is a functional measurement of Transferrin. When systemic iron levels are low, the liver increases the synthesis of Transferrin to maximize the transport of any available iron [1]. Therefore, an elevated TIBC is a classic compensatory finding in IDA. ### **Analysis of Other Options** * **A. Decreased Serum Ferritin:** This is the **earliest and most specific** biochemical marker of IDA. Ferritin reflects total body iron stores; low levels confirm deficiency. * **C. Microcytic Hypochromic Anemia:** As iron is essential for heme synthesis, its deficiency leads to smaller (Microcytic, Low MCV) and paler (Hypochromic, Low MCHC) red blood cells [1], [2]. * **D. Pica:** This is a classic clinical sign of IDA characterized by a craving for non-nutritive substances like ice (pagophagia), clay (geophagia), or starch. ### **NEET-PG High-Yield Pearls** * **Best Screening Test:** Serum Ferritin (decreased). * **Gold Standard Investigation:** Bone marrow aspiration (Perl’s Prussian Blue stain showing absent marrow iron). * **Transferrin Saturation:** Decreased (usually 13 suggests IDA; <13 suggests Thalassemia.

Q: All of the following features about Idiopathic Thrombocytopenia are true, EXCEPT:

Spontaneous remission is common in Chronic ITP. **Explanation:** Idiopathic Thrombocytopenic Purpura (ITP), now more commonly referred to as **Immune Thrombocytopenia**, is an acquired autoimmune disorder characterized by isolated thrombocytopenia (platelet count 12 months) rarely undergoes spontaneous remission. These patients often require long-term medical management (e.g., steroids, IVIg, or Rituximab) or surgical intervention (splenectomy). **Analysis of Other Options:** * **Option A:** Acute ITP in children is classically preceded by a **viral prodrome** (e.g., URI, varicella, or measles) or immunization 1–3 weeks before the onset of petechiae and bruising. * **Option B:** Chronic ITP shows a significant female predilection (Female:Male ratio of **3:1**), particularly in adolescents and adults, often associated with other autoimmune markers. * **Option D:** Acute ITP is the most common cause of sudden onset thrombocytopenia in an otherwise healthy child, typically peaking between **2–6 years of age**. **High-Yield Clinical Pearls for NEET-PG:** * **Diagnosis:** It is a diagnosis of exclusion. Bone marrow examination is not mandatory in classic pediatric cases but shows **increased megakaryocytes** if performed. * **Treatment Trigger:** In children, treatment is usually reserved for those with significant mucosal bleeding or a platelet count **<20,000/mm³**. * **First-line therapy:** Oral Prednisolone or IV Immunoglobulin (IVIg). * **Evans Syndrome:** ITP associated with Autoimmune Hemolytic Anemia (AIHA).

Q: Which condition is characterized by thrombocytopenia and widespread thrombosis?

Antiphospholipid antibody syndrome. **Explanation:** The correct answer is **Antiphospholipid Antibody Syndrome (APS)**. APS is an autoimmune prothrombotic state characterized by the presence of antiphospholipid antibodies (Lupus anticoagulant, Anticardiolipin, or Anti-β2 glycoprotein I). **Why Option A is correct:** The hallmark of APS is the "paradoxical" combination of **thrombosis** (both arterial and venous) and **thrombocytopenia** [1]. Thrombocytopenia occurs in approximately 20–40% of patients due to increased platelet consumption during thrombotic events or immune-mediated destruction of platelets coated with antibodies [1]. **Why the other options are incorrect:** * **B. Chronic Myeloid Leukemia (CML):** Typically presents with massive leukocytosis and **thrombocytosis** (elevated platelets), not thrombocytopenia. * **C. Hairy Cell Leukemia:** Characterized by pancytopenia (including thrombocytopenia) and massive splenomegaly, but it is not typically associated with widespread thrombosis. * **D. Hemolytic Uremic Syndrome (HUS):** While HUS involves thrombocytopenia and microvascular thrombosis, it is defined by a specific triad: Microangiopathic Hemolytic Anemia (MAHA), thrombocytopenia, and **acute kidney injury** [2]. APS is a more systemic condition involving large vessel thrombosis and obstetric complications. **NEET-PG High-Yield Pearls:** * **The APS Paradox:** Prolonged aPTT *in vitro* (due to antibody interference with phospholipids) but a hypercoagulable state *in vivo*. * **Obstetric APS:** Recurrent pregnancy loss (usually >10 weeks), premature births, or pre-eclampsia. * **Libman-Sacks Endocarditis:** Non-bacterial vegetative endocarditis associated with APS and SLE. * **Catastrophic APS (Asherson’s Syndrome):** Rapidly developing multiorgan failure due to small vessel occlusion.

Q: A 50-year-old male patient complains of pain in the back and legs. On routine investigations, it is found that he is anemic and his ESR is also raised. Which of the following is the most probable diagnosis for this patient?

Multiple myeloma. **Explanation:** The clinical presentation of bone pain (back and legs) in an elderly patient, combined with anemia and a significantly raised ESR, is a classic triad for **Multiple Myeloma (MM)** [1]. **Why Multiple Myeloma is correct:** Multiple Myeloma is a plasma cell dyscrasia characterized by the neoplastic proliferation of a single clone of plasma cells producing monoclonal (M) protein [1]. * **Bone Pain:** Caused by the activation of osteoclasts (via RANKL), leading to lytic lesions, pathological fractures, and bone resorption [1]. * **Anemia:** Usually normocytic, normochromic, resulting from bone marrow infiltration by plasma cells and cytokine-induced suppression of erythropoiesis. * **Raised ESR:** The high levels of monoclonal paraproteins (M-spike) neutralize the negative charge on RBCs, leading to **Rouleaux formation**, which causes a characteristically "extreme" elevation of ESR (often >100 mm/hr) [1]. **Why other options are incorrect:** * **Sickle cell anemia:** While it causes bone pain (vaso-occlusive crises), the ESR is typically **very low** because sickled cells cannot form Rouleaux. * **Polycythemia:** Characterized by an increased RBC mass; the ESR is typically **low or zero** due to increased blood viscosity and crowding. * **Waldenstrom Macroglobulinemia:** While it involves an M-spike (IgM) and high ESR, it typically presents with hyperviscosity symptoms and lymphadenopathy/splenomegaly rather than lytic bone lesions and bone pain [2]. **High-Yield Clinical Pearls for NEET-PG:** * **CRAB Criteria:** **C**alcium (High), **R**enal insufficiency, **A**nemia, **B**one lesions. * **Diagnosis:** Bone marrow biopsy shows >10% plasma cells; Serum Protein Electrophoresis (SPEP) shows an **M-spike** [1]. * **Urine:** Bence-Jones proteins (light chains) may be present (not detected on standard dipstick) [1]. * **X-ray:** "Punched-out" lytic lesions (Skull X-ray is a classic exam image) [1].

Q: A 25-year-old male presented with high-grade fever and hypotension. His Hb is 5 g/dL and TLC is 9000/mm³. What should be included in the management, except?

Oral ciprofloxacin. ### Explanation The patient presents with **Febrile Neutropenia** (implied by high-grade fever and potential bone marrow suppression suggested by severe anemia) and **Septic Shock** (hypotension). **1. Why "Oral ciprofloxacin" is the correct answer (The Exception):** In a patient with hypotension (septic shock), oral medications are contraindicated. Hypotension leads to splanchnic vasoconstriction and reduced gastrointestinal perfusion, resulting in unpredictable and inadequate absorption of drugs. Furthermore, patients with hemodynamic instability or high-risk features (MASCC score <21) require **Intravenous (IV)** broad-spectrum antibiotics immediately to achieve rapid therapeutic levels. **2. Analysis of Incorrect Options:** * **Packed cell transfusion:** The patient has severe anemia (Hb 5 g/dL). In the presence of hemodynamic instability (hypotension), a blood transfusion is indicated to improve oxygen-carrying capacity and stabilize the patient. * **IV ciprofloxacin:** Fluoroquinolones are often part of the regimen for febrile neutropenia, especially when targeting Gram-negative organisms. In a state of shock, the **IV route** is the mandatory standard of care. * **Colony stimulating factor (G-CSF):** While not always first-line for all fevers, G-CSF is indicated in "high-risk" febrile neutropenia (e.g., sepsis, hypotension, or multi-organ failure) to accelerate neutrophil recovery and improve clinical outcomes. **Clinical Pearls for NEET-PG:** * **Definition of Febrile Neutropenia:** Single oral temp >38.3°C (101°F) or >38.0°C (100.4°F) for 1 hour + ANC <500 cells/mm³. * **Initial Choice:** Monotherapy with an anti-pseudomonal beta-lactam (e.g., Piperacillin-Tazobactam, Cefepime, or Meropenem) is standard. * **Route Rule:** Always choose **IV over Oral** if the patient is hypotensive, vomiting, or has severe mucositis.

Q: Which of the following is NOT typically seen in a chronic case of sickle cell anemia?

Splenomegaly. **Explanation:** The correct answer is **Splenomegaly**. In chronic cases of Sickle Cell Anemia (SCA), the spleen undergoes a process known as **autosplenectomy**. While children with SCA may initially present with splenomegaly due to sequestration of sickled cells, recurrent splenic infarcts over time lead to progressive fibrosis and shrinkage of the organ. By adulthood, the spleen is typically small, calcified, and non-functional. **Analysis of Incorrect Options:** * **Hepatomegaly:** This is a common finding in chronic SCA. It occurs due to compensatory extramedullary hematopoiesis, chronic passive congestion from heart failure, or iron overload (hemosiderosis) resulting from frequent blood transfusions. * **Pulmonary Hypertension:** This is a major chronic complication and a leading cause of death in adult SCA patients. It results from chronic hemolysis, which depletes nitric oxide, leading to vasoconstriction and vascular remodeling. * **Cardiomegaly:** Chronic anemia leads to a hyperdynamic circulation. To compensate for the low oxygen-carrying capacity, the stroke volume and heart rate increase, eventually resulting in eccentric left ventricular hypertrophy and cardiomegaly. **NEET-PG High-Yield Pearls:** * **Autosplenectomy** usually occurs by age 6–8 years in HbSS patients. * The presence of **Howell-Jolly bodies** on a peripheral smear is a hallmark of functional asplenia. * Patients with autosplenectomy are at high risk for infections by **encapsulated organisms** (*S. pneumoniae, H. influenzae, N. meningitidis*). * If an adult with sickle cell disease has splenomegaly, consider **Sickle Cell-Thalassemia (HbSβ+)** or **HbSC disease**, where sickling is less severe and the spleen is preserved longer.

Q: What is the most sensitive indicator for iron deficiency anemia?

Serum ferritin. **Explanation:** Iron deficiency anemia (IDA) develops in stages: first, iron stores are depleted, followed by a decrease in transport iron, and finally, a drop in hemoglobin. **1. Why Serum Ferritin is the Correct Answer:** Serum ferritin is the **most sensitive and specific initial laboratory indicator** for iron deficiency. It directly reflects the body's total iron stores. A low serum ferritin level (<15–30 ng/mL) is virtually diagnostic of iron deficiency, as it is the first parameter to decrease before clinical anemia or changes in red cell morphology (microcytosis/hypochromia) occur. **2. Why Other Options are Incorrect:** * **TIBC (Total Iron-Binding Capacity):** While TIBC increases in IDA, it is less specific than ferritin and can be affected by nutritional status and liver function. * **Percentage Saturation of Transferrin:** This measures transport iron. It decreases in IDA but also fluctuates in other conditions like anemia of chronic disease (ACD) and is less sensitive for early storage depletion. * **Bone Marrow Iron:** While the **"Gold Standard"** for diagnosing iron deficiency (Prussian blue staining), it is an invasive procedure. In the context of "most sensitive indicator" in routine clinical practice, serum ferritin is the preferred non-invasive test. **High-Yield Clinical Pearls for NEET-PG:** * **The "Rule of Ferritin":** Ferritin is an **acute-phase reactant**. In the presence of inflammation, infection, or malignancy, ferritin levels may be falsely normal or elevated even if iron deficiency exists. * **Earliest Sign of IDA:** Depletion of bone marrow iron stores (but Serum Ferritin is the earliest biochemical marker). * **Earliest Sign of Response to Iron Therapy:** Increase in **Reticulocyte count** (usually seen within 5–7 days). * **Soluble Transferrin Receptor (sTfR) Assay:** Useful to differentiate IDA from Anemia of Chronic Disease (sTfR is elevated in IDA but normal in ACD).

Q: A 23-year-old male presented with epistaxis. Lab parameters show Hb= 5 g/dl, Platelet count = 23,000/mm3 and absolute neutrophil count = 176/mm3. Bone marrow is hypocellular with fatty infiltration. Which of the following statements regarding this condition is FALSE?

Lymphadenopathy and splenomegaly are highly typical.. ### Explanation The clinical presentation of pancytopenia (anemia, thrombocytopenia, and neutropenia) combined with a hypocellular bone marrow showing fatty replacement is diagnostic of **Aplastic Anemia**. **Why Option B is the Correct Answer (False Statement):** In Aplastic Anemia, the primary pathology is the failure of the bone marrow to produce cells. It is **not** a proliferative or infiltrative disorder. Therefore, physical findings such as **lymphadenopathy and splenomegaly are characteristically absent**. If these are present, clinicians must suspect alternative diagnoses like leukemia, lymphoma, or myelofibrosis. **Analysis of Other Options:** * **Option A (True):** Allogeneic Hematopoietic Stem Cell Transplantation (HSCT) is the treatment of choice for young patients (usually <40 years) with a matched sibling donor and can be curative. * **Option C (True):** While patients present with symptoms of anemia (fatigue) and infection (fever), **bleeding** due to severe thrombocytopenia (epistaxis, petechiae, mucosal bleeds) is often the most common and distressing presenting symptom. * **Option D (True):** For patients who are older or lack a donor, immunosuppressive therapy (IST) using **Antithymocyte Globulin (ATG)** and **Cyclosporine** is the standard of care, as the disease is often T-cell mediated. ### Clinical Pearls for NEET-PG: * **Severity Criteria (Camitta Criteria):** Severe Aplastic Anemia is defined by marrow cellularity <25% plus at least two of: 1. ANC < 500/mm³ (Very severe if < 200/mm³—as seen in this patient). 2. Platelets < 20,000/mm³. 3. Reticulocyte count < 1% (or < 60,000/mm³). * **Drug of Choice:** Eltrombopag (TPO receptor agonist) is now frequently added to IST to improve response rates. * **Most common cause:** Idiopathic (immune-mediated). Secondary causes include drugs (Chloramphenicol, Sulfa), viruses (Hepatitis, EBV), and toxins (Benzene).

Question 1

A young female presented with iron deficiency anemia. Which of the following is FALSE?

Accepted Answer

Decreased TIBC

Answer

Decreased serum ferritin

Answer

Microcytic hypochromic anemia

Answer

Pica

Question 2

All of the following features about Idiopathic Thrombocytopenia are true, EXCEPT:

Accepted Answer

Spontaneous remission is common in Chronic ITP

Answer

Acute ITP is often preceded by viral infections

Answer

Chronic ITP is common in females

Answer

Acute ITP is more common in children

Question 3

Which condition is characterized by thrombocytopenia and widespread thrombosis?

Accepted Answer

Antiphospholipid antibody syndrome

Answer

Chronic myeloid leukemia

Answer

Hairy cell leukemia

Answer

Hemolytic uremic syndrome

Question 4

A 50-year-old male patient complains of pain in the back and legs. On routine investigations, it is found that he is anemic and his ESR is also raised. Which of the following is the most probable diagnosis for this patient?

Accepted Answer

Multiple myeloma

Answer

Sickle cell anemia

Answer

Polycythemia

Answer

Waldenstrom macroglobulinemia

Question 5

A 25-year-old male presented with high-grade fever and hypotension. His Hb is 5 g/dL and TLC is 9000/mm³. What should be included in the management, except?

Accepted Answer

Oral ciprofloxacin

Answer

Packed cell transfusion

Answer

IV ciprofloxacin

Answer

Colony stimulating factor

Question 6

Which of the following is NOT typically seen in a chronic case of sickle cell anemia?

Accepted Answer

Splenomegaly

Answer

Hepatomegaly

Answer

Pulmonary hypertension

Answer

Cardiomegaly

Question 7

What is the most sensitive indicator for iron deficiency anemia?

Accepted Answer

Serum ferritin

Answer

TIBC (Total Iron-Binding Capacity)

Answer

Percentage saturation of transferrin

Answer

Bone marrow iron

Question 8

A patient has received 8 blood transfusions in the last few years, with Hb: 6.0 g/dL and RBCs 2 lakh/cu mm with MCV=64 fL. Which of the following investigations is not required for evaluating this patient?

Accepted Answer

Bone marrow examination

Answer

Tests for pulmonary hemosiderosis

Answer

GI endoscopy

Answer

Urine hemosiderin

Question 9

A 23-year-old male presented with epistaxis. Lab parameters show Hb= 5 g/dl, Platelet count = 23,000/mm3 and absolute neutrophil count = 176/mm3. Bone marrow is hypocellular with fatty infiltration. Which of the following statements regarding this condition is FALSE?

Accepted Answer

Lymphadenopathy and splenomegaly are highly typical.

Answer

Hematopoietic stem cell transplantation can be curative.

Answer

Bleeding is the most common symptom.

Answer

Immunosuppressants are used in treatment.

Question 10

Which of the following is a finding in functional platelet defects?

Accepted Answer

Normal platelet count and prolonged bleeding time

Answer

Normal platelet count and bleeding time

Answer

Prolonged bleeding time, prothrombin time, and PTT

Answer

Thrombocytopenia and prolonged bleeding time

Hematology — MCQs

Hematology — MCQs

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