Question 1

Leukemia is a type of cancer in which there is an abnormal increase in the number of......?

Accepted Answer

Answer reason:  White blood cells Leukemia is a malignancy of the blood-forming tissues (especially bone marrow) that leads to uncontrolled proliferation of abnormal leukocytes. This typically results in an increased number of white blood cells in blood and/or marrow, although the cells are often immature and dysfunctional. The overgrowth can suppress normal hematopoiesis, causing anemia and thrombocytopenia despite the WBC proliferation.
Category reason: This is a foundational hematology question about the abnormal proliferation of a specific blood cell line in leukemia, not about nursing interventions or clinical prioritization.

Question 2

Which vitamin is necessary for blood clotting?

Accepted Answer

Answer reason:  Vitamin K Vitamin K is required for hepatic gamma-carboxylation of several coagulation factors (II, VII, IX, X) and proteins C and S, enabling them to bind calcium and function in the clotting cascade. Deficiency leads to impaired clot formation and increased bleeding risk (e.g., elevated PT/INR). Vitamins A, D, and E do not serve as the essential cofactor for synthesis/activation of these clotting factors.
Category reason: This question tests foundational knowledge of the coagulation process and the vitamin required for synthesis/activation of clotting factors, which fits best under Hematology rather than nursing interventions.

Question 3

The normal platelet count range(per microliter) is?

Accepted Answer

Answer reason:  1,50,000-4,50,000 Normal platelet count in adults is approximately 150,000 to 450,000 per microliter (150–450 ×10^3/µL). Values below this suggest thrombocytopenia with increased bleeding risk, while higher values suggest thrombocytosis with potential thrombotic risk. The other options either reflect abnormally low ranges or an excessively high range not considered normal.
Category reason: This question tests normal reference range for a blood component (platelets), which is a foundational concept in blood physiology and hematologic laboratory interpretation, fitting Hematology.

Question 4

Which vitamin deficiency causes anemia?

Accepted Answer

Answer reason:  Vitamin B12 Vitamin B12 deficiency causes impaired DNA synthesis in rapidly dividing hematopoietic cells, leading to megaloblastic (macrocytic) anemia. It is classically seen with pernicious anemia, malabsorption (e.g., ileal disease/resection), or strict vegan diets without supplementation. In contrast, vitamin C deficiency primarily affects collagen synthesis, vitamin D deficiency affects bone/mineral metabolism, and vitamin K deficiency causes bleeding tendency due to impaired clotting factor activation rather than anemia as the primary deficiency effect.
Category reason: This question tests a foundational cause of anemia related to vitamin-dependent red blood cell production and maturation, which fits Hematology (blood disorders and anemia mechanisms) rather than nursing-care decision-making.

Question 5

Which cell helps in blood clotting?

Accepted Answer

Answer reason: Platelets Platelets (thrombocytes) are the primary cellular component responsible for hemostasis: they adhere to damaged endothelium, aggregate to form a platelet plug, and provide a surface for the coagulation cascade. Red blood cells mainly transport oxygen and do not initiate clot formation. White blood cells function in immunity, and plasma cells are antibody-producing B cells, not clotting cells.
Category reason: This is a foundational question about the formed elements of blood and their role in hemostasis, which falls under Hematology rather than nursing care decisions.

Question 6

Absence of the following clotting factor leads to hemophilia -A.....???

Accepted Answer

Answer reason: Factor viii Hemophilia A is caused by a deficiency of clotting factor VIII (antihemophilic factor), leading to impaired intrinsic pathway function and prolonged aPTT. Factor IX deficiency causes hemophilia B, not hemophilia A. Deficiencies of factors VII or X can cause bleeding disorders but are not classified as hemophilia A.
Category reason: This question tests identification of the specific coagulation factor deficiency responsible for a named bleeding disorder (hemophilia A), which is a core topic in blood and coagulation physiology/pathology under Hematology.

Question 7

Hemophilia is due to deficiency of?

Accepted Answer

Answer reason: Clotting factors (Factor VIII/IX) Hemophilia is an inherited coagulation disorder caused by deficiency of specific clotting factors—most commonly factor VIII (hemophilia A) or factor IX (hemophilia B). This leads to impaired secondary hemostasis with inadequate fibrin clot formation, causing prolonged bleeding and deep tissue/joint hemorrhages. RBCs and WBCs are unrelated to clotting, and isolated platelet problems typically cause mucocutaneous bleeding rather than classic hemophilia patterns.
Category reason: This question tests the underlying blood coagulation defect responsible for hemophilia, which is core content in Hematology (clotting factors and hemostasis) rather than nursing interventions or prioritization.

Question 8

The lifespan of RBCs is approximately?

Accepted Answer

Answer reason: 120 days Erythrocytes circulate for about 120 days before being removed primarily by macrophages in the spleen (and also liver/bone marrow). This typical lifespan reflects cumulative membrane damage and declining deformability over time. Shortened RBC survival is seen in hemolytic anemias, while normal turnover supports steady hemoglobin and bilirubin production.
Category reason: This is a foundational question about red blood cell physiology and turnover, which falls under Hematology rather than nursing care decisions or interventions.

Question 9

Which of the following is a type of anemia?

Accepted Answer

Answer reason: Thalassemia Thalassemia is a hereditary hemoglobin synthesis disorder that causes chronic microcytic anemia due to reduced or absent globin chain production. Lymphoma and leukemia are malignancies of lymphoid or hematopoietic cells rather than primary anemia types. Hemophilia is a coagulation factor deficiency that causes bleeding, not decreased red blood cell mass.
Category reason: This question tests recognition of a blood disorder classification (anemia vs malignancy vs clotting disorder), which falls under Hematology.

Question 10

Which is referred to "Graveyard of RBC's"?

Accepted Answer

Answer reason: Spleen The spleen is commonly called the “graveyard of RBCs” because it filters blood and removes senescent or damaged red blood cells via splenic macrophages (especially in the red pulp). It performs culling and pitting, clearing abnormal RBCs and recycling iron from hemoglobin. While the liver can also clear RBC breakdown products, the classic organ identified with RBC destruction is the spleen.
Category reason: This tests foundational knowledge of where aged red blood cells are removed from circulation, which is a core topic in blood/reticuloendothelial physiology and therefore best classified under Hematology.

Question 11

Leukemia is a disease of…?

Accepted Answer

Answer reason: WBC Leukemia is a malignancy of the blood-forming tissues, characterized by uncontrolled proliferation of abnormal white blood cell (WBC) precursors in the bone marrow. This leads to high numbers of dysfunctional WBCs and crowding out of normal hematopoiesis, causing anemia, thrombocytopenia, and infection risk. Skin findings can occur (e.g., petechiae) but are secondary manifestations, not the primary disease site.
Category reason: This question tests foundational knowledge about the cellular origin of leukemia (a disorder of white blood cells/bone marrow), which is part of Hematology rather than nursing interventions or prioritization.

Question 12

A 55-year-old patient presents with fatigue, pallor, and shortness of breath on exertion. Laboratory results show a hemoglobin level of 8 g/dL, mean corpuscular volume (MCV) of 70 fL, and serum ferritin of 8 ng/mL. Which intervention should the nurse anticipate?

Accepted Answer

Answer reason: The patient presents with microcytic anemia (low MCV) and low ferritin, consistent with iron deficiency anemia. The primary treatment is oral iron supplementation to restore iron stores and correct anemia. Vitamin B12 is indicated for macrocytic anemia, platelet transfusion is for thrombocytopenia, and IV immunoglobulin is for immune-mediated hematologic conditions, none of which match the lab findings.

Question 13

Blood clothing is controlled by?

Accepted Answer

Answer reason: Platelets Platelets are the primary cellular component that initiates hemostasis by adhering to damaged endothelium, aggregating, and forming a platelet plug. They also provide a phospholipid surface for activation of the coagulation cascade, which stabilizes the clot with fibrin. Plasma contains clotting factors, but the question asks what controls clotting among the listed components, and platelets are the key immediate regulators of clot formation. WBCs are for immune defense and RBCs mainly carry oxygen and do not control coagulation.
Category reason: This question tests foundational knowledge of blood components and hemostasis, which is a core topic in hematology rather than a nursing intervention or prioritization scenario.

Question 14

Which of these decreases in human body due to dengue fever?

Accepted Answer

Answer reason: Platelet Dengue infection commonly causes thrombocytopenia due to bone marrow suppression and increased peripheral platelet destruction/consumption. This platelet drop is a key lab abnormality and contributes to bleeding risk in severe dengue/dengue hemorrhagic fever. Hemoglobin typically does not primarily decrease (it may appear concentrated with plasma leakage), and sugar/water are not the characteristic “decreases” tested for dengue.
Category reason: This question tests a characteristic hematologic laboratory change seen in dengue fever (thrombocytopenia), which is a blood/cell-count concept rather than a nursing intervention scenario.

Question 15

Red blood corpuscles are formed in.....?

Accepted Answer

Answer reason: Bone Marrow In normal postnatal life, erythropoiesis (production of red blood cells) occurs primarily in the red bone marrow of flat bones and the ends of long bones. The kidney mainly regulates this process by secreting erythropoietin in response to hypoxia, but it is not the site of RBC formation. The liver is an important fetal site of hematopoiesis, not the primary adult site, and the heart is not involved in blood cell production.
Category reason: This question tests the physiologic/hematologic site of erythropoiesis (where RBCs are produced), which is a foundational biomedical knowledge topic rather than a nursing intervention scenario.

Question 16

Formation of WBC takes place in.....

Accepted Answer

Answer reason: Lymph gland White blood cells are produced via hematopoiesis, primarily in the bone marrow, and lymphoid organs contribute to development and proliferation of certain WBCs (especially lymphocytes). Among the provided options, lymph glands (lymph nodes) are the best match as lymphoid tissue involved in lymphocyte formation and maturation. The liver is a major hematopoietic organ mainly in fetal life, the pancreas is not a WBC-forming organ, and the spleen is primarily involved in filtering blood and immune responses rather than being the main site of WBC formation.
Category reason: This is a foundational question about where blood/immune cells are formed, which falls under hematopoiesis and the immune/blood system rather than nursing interventions or clinical prioritization.

Question 17

The ‘Storehouse of RBCs is?

Accepted Answer

Answer reason: Spleen The spleen serves as a reservoir (“storehouse”) for blood, including red blood cells, and can contract to release stored blood into circulation when needed. It also filters aged or damaged RBCs and participates in immune functions. Bone marrow is the primary site of RBC production (erythropoiesis), not storage, and kidney mainly regulates erythropoietin production rather than storing RBCs.
Category reason: This tests a foundational blood/lymphoid organ function (RBC storage/reservoir role of the spleen), which is a core concept in Hematology rather than nursing interventions or prioritization.

Question 18

Thalassemia is a disorder of which part of the body?

Accepted Answer

Answer reason: Blood Thalassemia is an inherited hemoglobinopathy affecting hemoglobin synthesis within red blood cells, making it a disorder of the blood. Defective globin chain production leads to microcytic anemia, hemolysis, and ineffective erythropoiesis. While complications can involve organs like the heart (iron overload) or spleen (splenomegaly), the primary disease process is hematologic.
Category reason: This question tests foundational knowledge about thalassemia as a hemoglobin/red blood cell disorder, which falls under Hematology rather than nursing care decision-making.

Question 19

Average lifespan of RBC?

Accepted Answer

Answer reason: 120 days Normal erythrocytes circulate for about 120 days before being removed primarily by the spleen and other reticuloendothelial tissues. Their limited lifespan is due to membrane wear and inability to repair oxidative damage because mature RBCs lack nuclei and mitochondria. This baseline value is important for interpreting hemolysis, anemia patterns, and the timing of changes in hemoglobin/hematocrit after therapy.
Category reason: This is a foundational fact about red blood cell turnover and lifespan, which is a core concept in Hematology rather than a nursing intervention or clinical decision-making scenario.

Question 20

Destruction of RBC takes place in....

Accepted Answer

Answer reason: Spleen Senescent and damaged RBCs are primarily removed by macrophages in the spleen (red pulp), making it the main site of physiologic RBC destruction. The spleen also “filters” abnormal RBCs and recycles iron from hemoglobin. While the liver (Kupffer cells) can also contribute, it is secondary compared with the spleen. Pancreas and lymph glands are not primary sites of RBC breakdown.
Category reason: This question tests where aged red blood cells are removed and broken down, which is a core concept in blood physiology and reticuloendothelial function, best categorized under Hematology.

Question 21

All of the following are components of blood EXCEPT?

Accepted Answer

Answer reason: Lymph Blood is composed of plasma and formed elements, including red blood cells and platelets (along with white blood cells). Lymph is a separate fluid of the lymphatic system derived from interstitial fluid and transported in lymphatic vessels, not a normal component of circulating blood. Therefore, among the options listed, lymph is the exception.
Category reason: This is a foundational question about the composition of blood and its formed elements, which is primarily studied in Hematology rather than nursing clinical decision-making.

Question 22

Which is blood Cancer?

Accepted Answer

Answer reason: Leukemia Leukemia is a malignancy of blood-forming tissues, characterized by uncontrolled proliferation of abnormal leukocytes in the bone marrow and blood. It is therefore classically referred to as a “blood cancer.” Hemophilia is an inherited bleeding disorder, diabetes is a metabolic/endocrine disease, and anemia is a condition of reduced oxygen-carrying capacity, not a cancer.
Category reason: This is a foundational disease-classification question about a malignancy of blood and bone marrow, which is primarily studied under Hematology rather than nursing interventions or prioritization.

Question 23

Which blood group is a universal recipient?

Accepted Answer

Answer reason: AB+ Individuals with AB+ blood have both A and B antigens and are Rh-positive, so they do not have anti-A, anti-B, or anti-Rh(D) antibodies in their plasma. Therefore, they can receive red blood cells from any ABO type (A, B, AB, or O) and from either Rh-positive or Rh-negative donors. This is why AB+ is considered the universal recipient for packed red blood cell transfusions.
Category reason: This question tests understanding of ABO/Rh blood group compatibility and transfusion immunohematology, which falls under Hematology rather than nursing judgment/interventions.

Question 24

What is the lifespan of RBCs?

Accepted Answer

Answer reason: 120 days Mature red blood cells circulate for about 120 days before being removed primarily by the spleen and liver (reticuloendothelial system). Their lack of a nucleus and organelles limits repair capability, contributing to this finite lifespan. This value is clinically relevant for understanding anemia, hemolysis, and interpretation of reticulocyte responses.
Category reason: This is a foundational fact about red blood cell turnover and lifespan, which is a core topic in Hematology rather than a nursing intervention or prioritization scenario.

Question 25

Blood group is determined by?

Accepted Answer

Answer reason: ABO The ABO blood group system is determined by the presence or absence of A and/or B antigens on the surface of red blood cells (and corresponding antibodies in plasma). ESR is an inflammatory marker, LFT evaluates liver function, and ECG assesses cardiac electrical activity—none determine blood group. Therefore, ABO is the correct determinant listed.
Category reason: This is a foundational question about blood group classification based on red blood cell antigens, which is part of Hematology rather than nursing intervention or prioritization.

Question 26

RBC production occurs in...?

Accepted Answer

Answer reason: A) Bone marrow Erythropoiesis (RBC production) occurs primarily in the red bone marrow in children and adults. Hematopoietic stem cells in the marrow differentiate into erythroid precursors under the stimulation of erythropoietin (mainly from the kidneys). The spleen is mainly involved in filtering and removing aged/damaged RBCs, not producing them in normal adults. The liver is a major site of fetal hematopoiesis, but not the primary site after birth.
Category reason: This question tests foundational knowledge of where erythropoiesis occurs, a core concept in blood cell formation and hematopoiesis, which belongs to Hematology rather than nursing intervention decision-making.

Question 27

Myeloma is a....?

Accepted Answer

Answer reason: Blood Cancer Multiple myeloma is a malignant proliferation of plasma cells in the bone marrow, making it a hematologic (blood) cancer. It commonly produces a monoclonal immunoglobulin (M-protein) and causes lytic bone lesions, anemia, and immunosuppression. Renal impairment can occur from light-chain deposition, but the primary disease classification is blood cancer rather than kidney, lung, or skin disease.
Category reason: This question tests classification of a hematologic malignancy (multiple myeloma) rather than a nursing action or care decision, so it fits NursingScience under Hematology.

Question 28

Hemoglobin is checked by...?

Accepted Answer

Answer reason: Blood Test Hemoglobin concentration is measured from a blood sample as part of laboratory testing (e.g., complete blood count or hemoglobin assay). Imaging studies like X-ray or MRI do not quantify hemoglobin levels, and biopsy is used for tissue diagnosis rather than blood protein concentration. Therefore, a blood test is the appropriate method to check hemoglobin.
Category reason: This item tests knowledge of how hemoglobin is measured and which diagnostic method assesses a blood component, which is foundational Hematology rather than a nursing intervention/priority decision.

Question 29

Which blood cells fight against infection?

Accepted Answer

Answer reason: WBC White blood cells (leukocytes) are the primary cells of the immune system responsible for defending the body against infections through mechanisms such as phagocytosis and antibody-mediated responses. Red blood cells mainly transport oxygen and carbon dioxide and do not provide immune defense. Platelets primarily function in hemostasis and clot formation rather than fighting infection.
Category reason: This item tests basic knowledge of blood cell functions (immune defense vs oxygen transport vs clotting), which is foundational hematology rather than a nursing action or prioritization decision.

Question 30

Anemia is caused due to deficiency of?

Accepted Answer

Answer reason: Iron Iron is essential for hemoglobin synthesis in red blood cells, and deficiency leads to reduced hemoglobin production and microcytic, hypochromic anemia. Among the listed nutrients, iron deficiency is the classic and most common nutritional cause of anemia. Phosphorus, calcium, and lipids are not primary limiting substrates for hemoglobin formation and do not typically cause anemia when deficient.
Category reason: This question tests the biomedical cause of anemia related to hemoglobin/RBC formation, which is a core topic in Hematology rather than nursing care decisions.

Question 31

Spoon-shaped nails (Koilonychia) are seen in?

Accepted Answer

Answer reason: Iron deficiency anemia Koilonychia (spoon-shaped nails) is a classic physical finding associated with iron deficiency anemia, reflecting impaired keratinization and tissue oxygenation in chronic iron depletion. It is commonly seen along with other signs such as pallor, fatigue, and sometimes pica. Vitamin C deficiency more typically causes bleeding gums and petechiae, while vitamin B12 deficiency causes megaloblastic anemia with neurologic findings rather than spoon nails.
Category reason: This question tests recognition of a characteristic clinical sign (koilonychia) and its association with a specific type of anemia, which is primarily a hematology knowledge point rather than a nursing intervention or prioritization scenario.

Question 32

Thalassemia is a disease of?

Accepted Answer

Answer reason: Blood Thalassemia is an inherited hemoglobin synthesis disorder that affects red blood cells, leading to chronic microcytic anemia and hemolysis. Because the primary pathology involves abnormal globin chain production within RBCs, it is classified as a blood (hematologic) disorder. Liver, brain, and heart can be secondarily affected (e.g., iron overload, high-output cardiac strain), but they are not the primary disease site.
Category reason: This item tests knowledge of thalassemia as a hemoglobin/RBC disorder, which falls under Hematology rather than nursing care decision-making.

Question 33

Which blood cells help in clotting?

Accepted Answer

Answer reason: Platelets Platelets (thrombocytes) are the blood elements responsible for primary hemostasis by adhering to damaged endothelium and forming a platelet plug. They also provide a phospholipid surface that supports the coagulation cascade to generate fibrin and stabilize the clot. RBCs primarily transport oxygen, and plasma is the fluid component that carries clotting factors but is not a “blood cell.” Therefore, platelets are the blood cells that help in clotting.
Category reason: This is a foundational question about which formed element of blood participates in hemostasis, which falls under Hematology rather than nursing interventions or clinical prioritization.

Question 34

Which white blood cells are most abundant in the blood?

Accepted Answer

Answer reason: Neutrophils Neutrophils are the most abundant circulating leukocytes, typically making up about 50–70% of white blood cells in a normal differential count. They are key cells of the innate immune system and are usually the first responders in acute bacterial infections and inflammation. Basophils and eosinophils are normally present in much smaller percentages, and lymphocytes are generally second most common in adults.
Category reason: This is a foundational question about the relative proportions of leukocyte types in peripheral blood, which is a core Hematology topic rather than a nursing intervention or patient-care decision.

Question 35

Name the fluid that is left after blood clotting.?

Accepted Answer

Answer reason: Serum Serum is the liquid portion of blood that remains after coagulation has occurred and the clot (fibrin with trapped cells) is removed. During clotting, fibrinogen and several clotting factors are consumed, so they are absent or reduced in serum. In contrast, plasma is obtained from anticoagulated blood and still contains fibrinogen and clotting factors.
Category reason: This asks for a basic blood component concept (plasma vs serum after coagulation), which is a foundational topic in Hematology rather than a nursing care decision.

Question 36

Which cells carry oxygen throughout the body?

Accepted Answer

Answer reason: Red Blood Cells Red blood cells (erythrocytes) transport oxygen by binding it to hemoglobin, which carries O2 from the lungs to peripheral tissues. White blood cells are primarily responsible for immune defense, not oxygen transport. Platelets function in clot formation, and plasma is the liquid portion of blood that carries dissolved substances but does not primarily carry oxygen.
Category reason: This question tests basic blood cell function—specifically oxygen transport via hemoglobin—so it fits Hematology as foundational biomedical knowledge rather than a nursing care decision.

Question 37

The universal recipient blood group is _____.?

Accepted Answer

Answer reason: AB positive AB+ individuals have A, B, and Rh(D) antigens on their red blood cells and therefore do not have anti-A or anti-B antibodies in plasma, allowing them to receive RBCs from any ABO type. Being Rh positive also permits receipt of both Rh+ and Rh− RBCs (when ABO compatible), making AB+ the universal recipient for packed RBC transfusions. In contrast, O− is the universal donor for RBCs, not the universal recipient. For plasma transfusion, compatibility rules differ (AB plasma is universal donor).
Category reason: This question tests ABO/Rh blood group compatibility (universal recipient concept) which is part of blood and immunohematology fundamentals rather than a nursing intervention scenario.

Question 38

Which blood cells help in clotting?

Accepted Answer

Answer reason: Platelets They are the primary cellular component of hemostasis, adhering to injured endothelium and aggregating to form the initial platelet plug. They also provide a phospholipid surface that accelerates activation of coagulation factors, stabilizing the clot with fibrin. RBCs mainly carry oxygen, WBCs are for immune defense, and plasma is the fluid portion (though it contains clotting proteins, it is not a blood cell).
Category reason: This is a foundational question about the components of blood and their roles in hemostasis, which is best categorized under Hematology.

Question 39

1 unit of blood contains ....ml?

Accepted Answer

Answer reason: 350 ml A standard adult unit of whole blood collected into anticoagulant-preservative typically has a volume around 350 mL (often cited as ~350 ± 10%). Volumes can vary by collection bag type and whether it is whole blood versus packed red blood cells, but the conventional teaching for “one unit of blood” aligns closest with this value among the choices. The larger volumes listed are not typical for a single standard unit in routine blood banking.
Category reason: This asks for the typical volume of a unit of donated blood, which is foundational blood component knowledge within hematology/transfusion science rather than a nursing judgment or intervention question.

Question 40

Which blood cells fight against infection?

Accepted Answer

Answer reason: Wbc White blood cells (leukocytes) are the immune cells responsible for identifying, attacking, and removing pathogens through innate and adaptive immune responses. Neutrophils and macrophages perform phagocytosis, while lymphocytes (B and T cells) mediate antibody production and cell-mediated immunity. In contrast, RBCs primarily transport oxygen, platelets are for clotting, and plasma is the liquid component carrying proteins and solutes rather than being a cellular infection-fighting element.
Category reason: This question tests basic knowledge of blood components and their functions, specifically the role of leukocytes in host defense, which falls under Hematology.

Question 41

What is the average volume of a red blood cell in human?

Accepted Answer

Answer reason: 85 μm³ Mean corpuscular volume (MCV) reflects the average size/volume of an individual erythrocyte and is typically about 80–100 fL. Since 1 fL equals 1 μm³, this corresponds to roughly 80–100 μm³ for a normal human red blood cell. A value of 85 μm³ lies within the normal range and best represents the average among the choices. The other options are either below typical average (70 μm³) or lean toward the high end or above-average values (100–120 μm³).
Category reason: This asks for a normal quantitative property of red blood cells (MCV), which is a foundational hematology concept rather than a nursing action or clinical decision.

Question 42

Where does adult hematopoiesis occur?

Accepted Answer

Answer reason: Bone marrow In adults, the primary site of blood cell production is red bone marrow, where hematopoietic stem cells differentiate into erythrocytes, leukocytes, and platelets. The spleen can resume blood cell production mainly in fetal life or in certain disease states (extramedullary hematopoiesis), but it is not the usual adult site. The thymus is primarily for T-lymphocyte maturation, and lymph nodes are mainly for immune activation rather than producing all blood cell lineages.
Category reason: This question tests where blood cells are formed in adults, which is a core concept in Hematology rather than a nursing intervention or patient-care judgment.

Question 43

Aplastic anaemia can process to?

Accepted Answer

Answer reason: all of the above Aplastic anemia reflects bone marrow failure and can be associated with clonal evolution to myeloid malignancy, most classically AML. It may also be related to or progress within broader marrow failure syndromes where acute lymphoblastic leukemia or lymphoproliferative disorders can emerge, particularly in the setting of underlying predisposition or treatment-related DNA damage. Because each listed malignancy can occur as a progression/association in appropriate clinical contexts, the best single answer is the combined option.
Category reason: This item tests disease progression and hematologic malignancy associations stemming from bone marrow failure, which is core Hematology knowledge rather than a nursing-care decision.

Question 44

The medical term for low platelet count is___

Accepted Answer

Answer reason: Thrombocytopenia This term literally means a decreased number of thrombocytes (platelets) in the blood. Low platelets increase bleeding risk because platelets are essential for primary hemostasis and clot formation. In contrast, anemia refers to low red blood cells/hemoglobin, leukopenia to low white blood cells, and polycythemia to increased red blood cell mass.
Category reason: This is testing terminology and understanding of blood cell line abnormalities (platelets vs RBCs vs WBCs), which belongs to Hematology rather than nursing care decision-making.

Question 45

Which blood group is known as the “Universal Donor”?

Accepted Answer

Answer reason: O- For red blood cell transfusions, this type lacks A and B antigens and also lacks the Rh(D) antigen, making it least likely to be attacked by a recipient’s preformed antibodies. This minimizes the risk of an acute hemolytic transfusion reaction when donor blood must be given before full typing and crossmatching is complete. It is therefore used as emergency “universal” donor blood for packed RBCs (not for plasma products).
Category reason: This item tests ABO/Rh blood group compatibility and transfusion immunohematology principles, which fall under Hematology rather than nursing care decision-making.

Question 46

Which blood cells fight against infection?

Accepted Answer

Answer reason: White blood cells are the primary immune cells responsible for identifying and destroying pathogens through mechanisms such as phagocytosis and antibody-mediated responses. Increases in certain types (e.g., neutrophils in bacterial infection) are part of the body’s typical defense response. RBCs mainly transport oxygen, platelets are for clotting, and plasma is the liquid component carrying proteins and solutes.
Category reason: This question tests the function of blood components and immune defense, which is a core topic within Hematology rather than nursing care decision-making.

Question 47

A 45-year-old woman has been having menorrhagia and metrorrhagia for several months. She is also feeling very tired and run down. Which is the most likely explanation for her fatigue?

Accepted Answer

Answer reason: Prolonged heavy and irregular uterine bleeding commonly causes iron-deficiency anemia from ongoing iron loss. Reduced iron impairs hemoglobin synthesis, lowering the blood’s oxygen-carrying capacity and leading to fatigue, weakness, and being “run down.” Menopausal hormonal changes can alter bleeding patterns but do not directly explain significant fatigue as well as anemia does in this context. Gastrointestinal pressure symptoms are not suggested by the presentation, and anxiety alone is less likely to be the primary cause given the chronic blood loss history.
Category reason: This question tests the pathophysiologic mechanism of fatigue from chronic blood loss leading to iron-deficiency anemia, which is a core Hematology concept rather than a nursing-care decision scenario.

Question 48

Which of the following is NOT found in human blood?

Accepted Answer

Answer reason: Chondrocytes are specialized cells of cartilage found in connective tissue, not circulating in the bloodstream. In contrast, leucocytes (white blood cells) are present in blood, and lymphocytes and monocytes are specific types of leucocytes that normally circulate and participate in immune defense. Therefore, among the options, only the cartilage cell is not a normal blood component.
Category reason: This item tests identification of blood cell types versus a non-blood tissue cell, which is a foundational topic in Hematology.

Question 49

Leukemia is cancer of ??

Accepted Answer

Answer reason: Leukemia is a malignancy of hematopoietic tissue characterized by uncontrolled proliferation of abnormal leukocytes (white blood cell lineage) in the bone marrow and blood. This disrupts normal marrow function, leading to anemia, thrombocytopenia, and increased infection risk despite high or abnormal WBC counts. The other choices (plasma, platelets, RBC) correspond more directly to plasma cell dyscrasias, thrombocytopenic/platelet disorders, or erythroid disorders rather than leukemia.
Category reason: This is a foundational question about what cell line is involved in leukemia, which is a core topic in blood disorders under Hematology rather than a nursing care decision.

Question 50

Most common cause of iron deficiency anemia worldwide is?

Accepted Answer

Answer reason: Inadequate dietary iron intake (often compounded by low bioavailability and increased needs in infancy, childhood, and pregnancy) is the leading global driver of iron deficiency anemia. While chronic blood loss is a common cause in many higher-income settings, worldwide the dominant burden is from insufficient iron consumption and poor nutrition. Hookworm contributes substantially in endemic regions, but overall it is not as prevalent globally as dietary deficiency. Chronic kidney disease typically causes anemia primarily via reduced erythropoietin rather than true iron deficiency.
Category reason: This asks for the epidemiologic cause of a specific anemia type, which is a foundational blood/hematologic concept rather than a nursing intervention or care-prioritization scenario.

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Leukemia is a type of cancer in which there is an abnormal increase in the number of......?

Which vitamin is necessary for blood clotting?

The normal platelet count range(per microliter) is?

Which vitamin deficiency causes anemia?

Which cell helps in blood clotting?

Absence of the following clotting factor leads to hemophilia -A.....???

Hemophilia is due to deficiency of?

The lifespan of RBCs is approximately?

Which of the following is a type of anemia?

Which is referred to "Graveyard of RBC's"?

Leukemia is a disease of…?

A 55-year-old patient presents with fatigue, pallor, and shortness of breath on exertion. Laboratory results show a hemoglobin level of 8 g/dL, mean corpuscular volume (MCV) of 70 fL, and serum ferritin of 8 ng/mL. Which intervention should the nurse anticipate?

Blood clothing is controlled by?

Which of these decreases in human body due to dengue fever?

Red blood corpuscles are formed in.....?

Formation of WBC takes place in.....

The ‘Storehouse of RBCs is?

Thalassemia is a disorder of which part of the body?

Average lifespan of RBC?

Destruction of RBC takes place in....

All of the following are components of blood EXCEPT?

Which is blood Cancer?

Which blood group is a universal recipient?

What is the lifespan of RBCs?

Blood group is determined by?

RBC production occurs in...?

Myeloma is a....?

Hemoglobin is checked by...?

Which blood cells fight against infection?

Anemia is caused due to deficiency of?

Spoon-shaped nails (Koilonychia) are seen in?

Thalassemia is a disease of?

Which blood cells help in clotting?

Which white blood cells are most abundant in the blood?

Name the fluid that is left after blood clotting.?

Which cells carry oxygen throughout the body?

The universal recipient blood group is _____.?

Which blood cells help in clotting?

1 unit of blood contains ....ml?

Which blood cells fight against infection?

What is the average volume of a red blood cell in human?

Where does adult hematopoiesis occur?

Aplastic anaemia can process to?

The medical term for low platelet count is___

Which blood group is known as the “Universal Donor”?

Which blood cells fight against infection?

A 45-year-old woman has been having menorrhagia and metrorrhagia for several months. She is also feeling very tired and run down. Which is the most likely explanation for her fatigue?

Which of the following is NOT found in human blood?

Leukemia is cancer of ??

Most common cause of iron deficiency anemia worldwide is?

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