Blood – MCQs for Nursing Exams (GNM 1st Year) | Anatomy & Physiology for GNM | NursingNotesGNM

🩸 Blood – MCQs for Nursing Exams (GNM 1st Year)

By NursingNotesGNM | Updated for GNM Final Exam 2026

Composition, Functions, Clotting, Blood Grouping & Blood Products


📌 Table of Contents

  1. Introduction

  2. MCQs on Composition and Formation of Blood

  3. MCQs on Functions of Blood

  4. MCQs on Blood Clotting

  5. MCQs on Blood Grouping and Cross Matching

  6. MCQs on Blood Products and Their Uses

  7. Exam Tips for Nursing Students


🔍 Introduction

Blood is a specialized connective tissue that plays a vital role in transportation, regulation, and protection of the human body. Questions related to blood are frequently asked in GNM 1st Year, ANM, Staff Nurse, NORCET, AIIMS, and State Nursing Exams.

This post provides 40 exam-oriented MCQs covering:

  • Composition and formation of blood

  • Functions of blood

  • Blood clotting mechanism

  • Blood grouping and cross matching

  • Blood products and their uses


🧬 MCQs: Composition and Formation of Blood

1. Blood is classified as:

Answer: c) Connective tissue


2. The liquid portion of blood is called:

  • a) Serum

  • b) Plasma

  • c) Lymph

  • d) Interstitial fluid

Answer: b) Plasma


3. Plasma constitutes approximately how much percentage of blood?

  • a) 30%

  • b) 40%

  • c) 55%

  • d) 70%

Answer: c) 55%


4. The formed elements of blood include:

  • a) RBC only

  • b) RBC and WBC

  • c) RBC, WBC and platelets

  • d) All of the above

Answer: d) All of the above


5. Red blood cells are also known as:

Answer: c) Erythrocytes


6. Normal lifespan of RBC is:

  • a) 60 days

  • b) 90 days

  • c) 120 days

  • d) 180 days

Answer: c) 120 days


7. Hemoglobin is mainly responsible for:

  • a) Immunity

  • b) Clotting

  • c) Oxygen transport

  • d) Hormone secretion

Answer: c) Oxygen transport


8. Site of blood cell formation in adults is:

  • a) Liver

  • b) Spleen

  • c) Red bone marrow

  • d) Kidney

Answer: c) Red bone marrow


9. The process of blood cell formation is called:

Answer: b) Hematopoiesis


10. White blood cells are mainly concerned with:

  • a) Oxygen transport

  • b) Nutrition

  • c) Defense and immunity

  • d) Blood clotting

Answer: c) Defense and immunity


❤️ MCQs: Functions of Blood

11. Which of the following is NOT a function of blood?

  • a) Transport of oxygen

  • b) Regulation of body temperature

  • c) Protection from infection

  • d) Digestion of food

Answer: d) Digestion of food


12. Blood helps in maintaining:

Answer: b) Acid–base balance


13. Transport of hormones occurs through:

  • a) Lymph

  • b) Nerves

  • c) Blood

  • d) Synovial fluid

Answer: c) Blood


14. Which component of blood regulates body temperature?

  • a) RBC

  • b) WBC

  • c) Platelets

  • d) Plasma

Answer: d) Plasma


15. Antibodies are present in:

  • a) RBC

  • b) Platelets

  • c) Plasma

  • d) Bone marrow

Answer: c) Plasma


16. Which component of blood fights infection?

  • a) RBC

  • b) WBC

  • c) Platelets

  • d) Plasma

Answer: b) WBC


17. Transport of carbon dioxide occurs mainly through:

  • a) RBC only

  • b) Plasma only

  • c) Hemoglobin only

  • d) All of the above

Answer: d) All of the above


18. Blood helps in transport of:

  • a) Nutrients

  • b) Waste products

  • c) Hormones

  • d) All of the above

Answer: d) All of the above


19. Which function of blood prevents loss of body fluids?

  • a) Transport

  • b) Regulation

  • c) Protection

  • d) Clotting

Answer: d) Clotting


20. Maintenance of osmotic pressure is done by:

  • a) RBC

  • b) WBC

  • c) Platelets

  • d) Plasma proteins

Answer: d) Plasma proteins


🧪 MCQs: Blood Clotting (Coagulation)

21. Blood clotting is also known as:

  • a) Hematopoiesis

  • b) Coagulation

  • c) Agglutination

  • d) Phagocytosis

Answer: b) Coagulation


22. Which vitamin is essential for blood clotting?

  • a) Vitamin A

  • b) Vitamin C

  • c) Vitamin K

  • d) Vitamin D

Answer: c) Vitamin K


23. Platelets are also called:

  • a) Leukocytes

  • b) Erythrocytes

  • c) Thrombocytes

  • d) Reticulocytes

Answer: c) Thrombocytes


24. Normal platelet count is:

  • a) 50,000–1,00,000/mm³

  • b) 1–2 lakh/mm³

  • c) 1.5–4 lakh/mm³

  • d) 5–7 lakh/mm³

Answer: c) 1.5–4 lakh/mm³


25. The final product of blood clotting is:

  • a) Prothrombin

  • b) Thrombin

  • c) Fibrin

  • d) Heparin

Answer: c) Fibrin


26. Calcium ions are required for:

  • a) Immunity

  • b) Blood clotting

  • c) Oxygen transport

  • d) Nutrition

Answer: b) Blood clotting


27. Bleeding disorder due to clotting factor deficiency is:

Answer: c) Hemophilia


28. Hemophilia is inherited as:

Answer: c) X‑linked recessive


29. Anticoagulant commonly used in blood banks is:

  • a) Vitamin K

  • b) Calcium

  • c) Heparin / Sodium citrate

  • d) Thrombin

Answer: c) Heparin / Sodium citrate


30. Enzyme responsible for clot dissolution is:

  • a) Thrombin

  • b) Fibrin

  • c) Plasmin

  • d) Prothrombin

Answer: c) Plasmin


🩸 MCQs: Blood Grouping, Cross Matching & Blood Products

31. ABO blood group system was discovered by:

Answer: c) Karl Landsteiner


32. Universal donor blood group is:

  • a) A+

  • b) B+

  • c) AB+

  • d) O−

Answer: d) O−


33. Universal recipient blood group is:

  • a) O+

  • b) A−

  • c) B+

  • d) AB+

Answer: d) AB+


34. Rh factor was discovered in:

Answer: c) Rhesus monkey


35. Cross matching is done to:

  • a) Detect anemia

  • b) Measure hemoglobin

  • c) Prevent transfusion reaction

  • d) Count RBC

Answer: c) Prevent transfusion reaction


36. Packed RBCs are used in:

  • a) Burns

  • b) Severe anemia

  • c) Hemophilia

  • d) Infection

Answer: b) Severe anemia


37. Plasma is mainly used for:

  • a) Oxygen transport

  • b) Clotting factor replacement

  • c) Immunity

  • d) Nutrition

Answer: b) Clotting factor replacement


38. Platelet transfusion is indicated in:

  • a) Anemia

  • b) Leukemia

  • c) Thrombocytopenia

  • d) Hypertension

Answer: c) Thrombocytopenia


39. Cryoprecipitate contains:

  • a) RBC

  • b) WBC

  • c) Fibrinogen

  • d) Albumin

Answer: c) Fibrinogen


40. Albumin is used to:

  • a) Increase immunity

  • b) Maintain plasma volume

  • c) Stop bleeding

  • d) Increase hemoglobin

Answer: b) Maintain plasma volume


🎯 Exam Tips for Nursing Students

  • Blood is a high‑yield chapter in nursing exams

  • Remember normal values and definitions

  • Practice ABO and Rh compatibility regularly

  • Revise uses of blood products before exams




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