Quiz: EXAMS 2023

1. Which enzyme is not involved in catabolism of heme?

A a) Heme oxygenase B b) UDP-glucuronyltransferase C c) Biliverdin reductase D d) Ferrochelatase

2. HbA differs from HbF in that:

A a) HbA has only alpha chains B b) HbF cannot bind to 2,3-BPG C c) HbF can bind only 2 molecules of oxygen D d) HbA is alkali resistant

3. The most important source of One Carbon is:

A Alanine B Glutamate C Serine D Butyrate

4. Cobalamin is:

A a) Extrinsic factor of castle B b) Vitamin B7 C c) Vitamin B9 D d) Vitamin B12

4. Cobalamin is:

A a) Extrinsic factor of castle B b) Vitamin B7 C c) Vitamin B9 D d) Vitamin B12

5. Kidney-shaped nuclei are found in:

A RBCs B Lymphocytes C Basophils D Monocytes

6. The thymus-dependent zone is found in:

A a) The primary lymphatic nodule of lymph node B b) The periarterial lymphatic sheath of the spleen C c) The blood sinuses of the spleen D d) The germinal center of the lymph node

7. Each of the following statements concerning monocytes is true EXCEPT:

A a) Represent about 3-8% of circulating leucocytes B b) The cytoplasm has fine azurophilic granules (lysosomes) C c) The nucleus has abundant extended chromatin (euchromatin) D d) Precursor for macrophages (mononuclear phagocytic system)

8. Which is incorrect about the thymus?

A a) Possesses lobules B b) Has afferent lymphatics C c) Has epithelial reticular cells D d) Has Hassell's corpuscles

9. Long axis of spleen lies along the shaft of:

A a) 9th rib B b) 10th rib C c) 11th rib D d) 12th rib

10. Thoracic duct opens into the junction between:

A a) Left jugular and left subclavian veins B b) Right jugular and subclavian veins C c) Left subclavian and axillary vein D d) Right subclavian and axillary veins

11. The most serious form of Malaria is:

A a) Plasmodium vivax B b) Plasmodium ovale C c) Plasmodium falciparum D d) Plasmodium malariae

12. The following isn't true about the mode of malaria infection:

A a) Injection of sporozoite. B b) Blood transfusion. C c) Congenitally. D d) Penetration by filariform larva.

13. The following is not classical Hodgkin lymphoma:

A a) Nodular lymphocytic predominant Hodgkin lymphoma. B b) Nodular sclerosis HL. C c) Mixed cellularity HL D d) Lymphocytic depletion HL

14. Stage II lymphoma means........

A a) Lymphoma in one group of lymph nodes. B b) Two groups of lymph nodes affected on both sides of the diaphragm C c) Two groups of lymph nodes affected on one side of the diaphragm D d) All groups of lymph nodes all over the body.

15. Megaloblastic anemia is best treated by:

A Iron B Vitamin C Folic acid D b+c

16. The following is not an antiplatelet agent:

A a) Aspirin 75 mg/da B b) Ticlopidine C c) Urokinase D d) Clopidogrel

17. If Ca++ is decreased; the blood coagulation is not stopped because:

A a) We need a very small level. B b) The patient should be dead from tetany before reaching to the level that needs to stop blood clotting. C c) The patient should take it from the diet. D d) It is needed only for step 1 and 2

18. Renal failure patients are always anemic due to:

A a) Increase of red blood cells destruction B b) Increase of red blood cells excretion C c) Increase of hemoglobin excretion D d) Decrease of erythropoietin hormone

19. Which of the following would lead to decreased erythropoiesis?

A a) Hypoxia. B b) Polycythemia. C c) Increased androgen level. D d) Increased cortisol levels.

20. Reticulocytic count is increased in the following cases EXCEPT:

A a) Acute hemorrhage B b) Acute hemolytic crisis C c) Anemia of chronic disease. D d) Sickle cell crisis.

21. All of the following are causes of hypochromic microcytic anemia EXCEPT:

A a) Aplastic anemia. B b) Iron deficiency anemia C c) Sideroblastic anemia. D e) All of the above

1. Which is the largest leukocyte?

A Neutrophil B Lymphocytes C Eosinophil D Monocytes

2. Each of the following statements concerning the neutrophils is true, EXCEPT:

A a) Contain azurophilic granules B b) Contain specific granules C c) Their nuclei consist of 3-5 lobes D d) Comprise 6-8% of all leukocytes

3. Each of the following statements concerning the lymphocytes is true, EXCEPT:

A a) Are small, medium-sized, and large B b) Have large round nucle C c) Have narrow rims of the light blue cytoplasm D d) Play a role in ending allergic reactions

4. A subcapsular sinus is typically present in the:

A Thymus B Palatine tonsils C Spleen D Lymph node

5. If Ca++ is decreased, the blood coagulation is not stopped because:

A a) We need a very small level. B b) The patient should be dead from tetany before reaching to the level that needs to stop blood clotting C c) The patient should take it from the diet D d) It is needed only for step 1 and 2

6. Renal failure patients are always anemic due to:

A a) Increase of red blood cells destruction B b) Increase of red blood cells excretion C c) Increase of hemoglobin excretion D d) Decrease of erythropoietin hormone

7. The biconcave shape of RBCs is the optimal shape to its function because the biconcave shape leads to:

A a) The surface area. B b) Hemoglobin remains distributed in the center of the RBCs. C c) Absorb water without rupture. D d) All of the above.

7. The biconcave shape of RBCs is the optimal shape to its function because the biconcave shape leads to:

A a) The surface area. B b) Hemoglobin remains distributed in the center of the RBCs. C c) Absorb water without rupture. D d) All of the above.

8. The activation of factor "X" into factor "X a" is achieved by:

A a) Factor XII a B b) Factor XI a. C c) Factor VII a D d) Factor VII a.

9. Which of the following would lead to decreased erythropoiesis?

A Hypoxia B Polycythemia C ) Increased androgen level. D Increased cortisol levels

10. Tissue thromboplastin causes:

A a) activation of factor V B b) activation of factor VI C c) activation of factor VII D d) activation of factor VIII

11. In parasitic infection, there is a marked increase in the count of:

A Neutrophils B Basophils C Eosinophils D Monocytes

12. The extrinsic pathway of blood coagulation:

A a) Is triggered by contact of factor VII with collagen B b) Requires tissue factor III C c) Requires tissue factor IX D d) Utilizes all the clotting factors in the blood

13. Megaloblastic anemia is best treated by:

A Iron B Vitamin-B12 C ) Folic acid D b+c

14. Hemopoietic growth factors are usually used for management of:

A a) Iron deficiency anemia B b) megaloblastic anemia C c) Aplastic anemia D d) Hemolytic anemia

15. The suitable management for hemolytic anemia is:

A a) Iron B b) Vitamin-b12 C c) Folic acid D e) Bone marrow transplantation

16. Bleeding due to overdose of heparin should be managed by:

A a) Vitamin-k B b) Iron C c) Protamine sulphate D d) Folic acid

18. The following types are Non-Hodgkin Lymphoma, Except:

A a) Lymphoblastic lymphoma B b) Burkitt's lymphoma C c) Diffuse large cell lymphoma D d) lymphocytic depletion HL.

19. Bleeding tendency is common in deficiency of all the following, except:

A a) Vitamin K B b) Vitamin B12 C c) Vitamin C D d) Platelets

20. In an adult body, the total content of iron is about:

A a) 1 g B b) 3-7 g C c) 3-9 g D d) 3-5 g

21. Vitamin B9 is:

A a) Abundant in milk B b) Absorbed from the upper part of the ileum C c) Absorbed from the upper part of the stomach D d) Derived from the Latin word folium

22. Mild chronic zinc deficiency can cause:

A a) anemia in adults B b) Diarrhea in children C c) stunted growth in children D d) decreased pain sensation

23. Acrodermatitis Enteropathica:

A a) Rare autosomal recessive disorder characterized by abnormalities in zinc absorption B b) Rare autosomal dominant disorder characterized by abnormalities in zinc absorption C c) Rare autosomal recessive disorder characterized by abnormalities in Cu absorption D d) Rare autosomal recessive disorder characterized by abnormalities in zinc absorption

24. The diagnosis of zinc deficiency is usually made when serum zinc level:

A a) < 70 g/dl B b) < 60 g/d C c) < 50 g/dl D d) < 40 g/dl

25. Which of the following causes of anemia is associated with microcytosis?

A a) Hypothyroidism B b) Alcoholism C c) Vitamin B12 deficiency D d) Sideroblastic Anemia

26. Which of the following iron profile characterizing thalassemia?

A a) Low serum iron, high TIBC, low ferritin level B b) High serum iron, low TIBC, high ferritin level C c) Low serum iron, low TIBC, low ferritin level D d) Low serum iron, low TIBC, high ferritin level

27. The following artery supplies the thymus gland.

A a) Ascending aorta B b) Coronary artery C c) Pulmonary artery D e) Internal mammary (thoracic) artery

28. Right lymphatic trunk ends into:

A a) Left venous angle B b) Right venous angle C c) Superior vena cava D d) Inferior vena cava

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