Quiz: Exams💝 — AUA MCQ

1- Which of the following is a cell of innate immunity?

A a. T lymphocyte B b. B lymphocyte C C. Monocyte D d. Mast cell

2- Barriers of the first line of natural defense include:

A a. Mechanical barriers B b. Bacteriological barriers (Normal bacterial flora) C c. Chemical barterers D d. All of the above

2- Barriers of the first line of natural defense include:

A a. Mechanical barriers B b. Bacteriological barriers (Normal bacterial flora) C c. Chemical barterers D d. All of the above

2- Barriers of the first line of natural defense include:

A a. Mechanical barriers B b. Bacteriological barriers (Normal bacterial flora) C c. Chemical barterers D d. All of the above

3- The antibody that is first formed after infection is:

A a. IgG B b. IgA C c. IgM D d. IgE

4- Plasma cells are the end cells of:

A a. T lymphocytes B b. B lymphocytes C c. NK cells D d. Macrophages

5-The complement is activated in a cascading manner through:

A a. Classical pathway B b. Alternative pathway C c. Lectin pathway D d. All of the above

6-The complement components are present in:

A a. Inactive form B b. Active form C c. Urine D d. CSF

7- MHC restriction means that:

A a. CD-8 T cytotoxic cells react with MHC II B b. CD-8 T cytotoxic cells react with MHC III C c. CD-4 helper cells react with MHC I D d. CD-4 helper cells react with MHC II

8- Antigen presenting cells carry:

A a. MHC II only B b. MHC I only C c. MHC I+II D d. MHC I+IV

9-Atopy is:

A a. IgM mediated. B b. The systemic form of type I hypersensitivity, C c. IgG mediated D d. The local form of type I hypersensitivity

10- Serum sickness is phenomenon due to:

A a. Type I Hypersensitivity reaction B b. Type II Hypersensitivity reaction C c. Immune complex mediated reaction. D d. Type IV Hypersensitivity reaction

11- CA 125 is a tumor marker for:

A a. Ovarian carcinoma B b. Hepatoma C c. Breast cancer D d. Colon and pancreatic tumors

12- Magic bullet therapy is a passive immunotherapy for Treatment of:

A a. Arthus reaction B b. bronchial asthma C c. anaphylaxis . D d. cancers

13- Which description is true for acquired immune response?

A a. Natural inborn barrier against pathogens. B b. Non-specific response to pathogen C c. Involves a very specific response to pathogen. D d. Develops before any exposure to the inducing agent

14- Which of the following is a circulating effector protein?

A a. Lysozyme B b. Complement C c. Acute phase proteins D d. All of the above

15- Structure of antibodies:

A a. Phospholipids B b. Lipopolysaccharides C c. Carbohydrates D d. Glycoproteins

16- Which of the following cell have a non-specific cytotoxic activity on tumor cell, virus infected cells and graft cells?

A a. NK cell B b. B lymphocyte C c. Macrophage D d. T lymphocyte

7- The ligament which connects spleen with left kidney is:

A a. gastrosplenic B b. lienorenal ligament C c. falciform ligament D d. coronay ligament

18- The following artery supplies thymus gland:

A a. ascending aorta B b. coronary artery C c. internal mammary (thoracic) artery D d. pulmonary artery

Causes of iron deficiency anemia include:

A a. Acute blood loss B b. Chronic blood loss. C c. Acute hemolysis. D d. All of the above

20- Hb electrophoresis is the slandered test for diagnosis of: .

A a. Iron deficiency anemia B b. Thalassemia C . c. Anemia of chronic disease. D d. A transferrinemia

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 d. Thalassemia trait

22- The pigment in red blood cells that carries oxygen is:

A a. Erythropoietin B b. Melatonin C c. Hemoglobin D d. Urobilinogen

23- An increase in the number of white blood cells is called:

A a. Anemia B b. Leukopenia C c. Leukocytosis D d. polycythemia

24- Stoppage of bleeding is called:

A a. Hemostasis B b. Vascular spasm C c. Thrombosis D d. Coagulation

25- Among leukocytes, the normal percentage of eosinophils is about:

A a. 1-2% B b. 2-4% C c. 4-6% D d. 5-10%

26- The red and white pulps are histological characteristic features of:

A a. Spleen B b. Lymph node C c. Thymus D d. Tonsil 2

27- The following bone marrow cell has multi-lobed poly-ploid nucleus: . .

A a. Megakaryoblasts . B b. Promegakaryocytes C c. Megakaryocytes D d. Myeloblasts

28- Lila is a female student aged 20 years coming by hemorrhagic anemia (caused by prolonged menses), her CBC’ reticulocytic count may be:

A a. Less than 2 % B b. Less than 1 % C c. Equal to 1 % D d. More than 1 %

29- Each heme unit is derived from:

A a. 4 molecules of glycine + 4 molecules of succinyl CoA B b. 8 molecules of glycine + 8 molecules of succinyl CoA C c. 4 molecules of glycine + 8 molecules of succinyl CoA D d. 8 molecules of glycine + 4 molecules of succinyl CoA

30- The following is a zinc-containing enzyme:

A a. 8-Amino levulinic acid (ALA) synthase B b. 8-Amino levulinic acid (ALA) dehydratase C c. Porphobilinogen (PBG) deaminase D d. Ferrochelatase

31- 8-Aminolevulonic acid (ALA) synthase is located in:

A a. Mitochondria B b. Cytosol C c. Nucleus D D. Lysosomes

32- Vitamin K is required for activation of the following except:

A a. Prothrombin B b. Factor VI C c. Factor IX D d. Product of growth arrest specific gene Gas6

33- Acute zinc toxicity after oral ingestion causes the following except:

A a. Hypertension B b. Nausea C c. Vomiting D d. Fever

34- Diagnosis of Wilson's disease include the following except:

A a. Kayser-Fleischer ring is present B b. Serum Ceruloplasmin increased C c. 24-hour Urinary Copper > 100 pg/24hour D d. 3 methyl histidine excretion is reduced in urine

35- The high-grade type of Non-Hodgkin B- Cell lymphoma is:

A a. Diffuse large lymphoma B b. Mantle cell lymphoma C c. Small lymphocytic lymphoma D d. marginal zone lymphoma

36- The non-classical type of Hodgkin lymphoma is:

A a. Mixed cellularity HL B b. Lymphocytic depletion HL C c. Lymphocytic rich HL D d. Nodular lymphocytic predominant HL

37- In case of atrophic gastritis, a combination of intrinsic factor and vit B12 is used for treatment of:

A a. Iron deficiency anemia B b. Hemolytic anemia C c. Pernicious anemia D d. Aplastic anemia

38- Desferrioxamine (desferal) used in treatment of:

A a. Iron toxicity B b. Folic acid toxicity C c. Vitamin C toxicity D d. Vitamin B12 toxicity

39- Cerebral malaria is a complication of:

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

40- The infective stage of malaria is:

A a. Sporozoite B b. Erythrocytic merozoite C c. Sporocyst. D d. Hepatic merozoite

Patient with hemoglobin 10 g/dl and serum Vitamin B12 and folic acid are low. He is likely to be suffering from

A a) Blood LossAnemia B b) Pernicious Anemia C c) Megaloblastic Anemia D d) Hemolytic Anemia

A make patient with a bleeding time of 15 minutes and coagulation time of 3 minutes. Which haemostatic abnormality is expected in this patient?

A a) Hemophilia B b) Thromobocytopenic purpura. C c) Thromoboasthenic purpura. D D_b and c

The biconcave shape of RBC is the optimal shape to its function? Because the biconcave shape leads to

A A-T the surface area B B- hemoglobin remains distributed in the center of the RBC C C- absorb water without rupture D D-All of the above

Action of plasmin is

A -a) to remove calcium B b) antithrombin action C c) to stimulate heparin D d) to degenerate fibrin

Regarding erythropoietin hormone which of the following is correct?

A A- Secreted by juxta-glomcrular cells B B- Stimulates thrombocytes formation C C- Secreted by renal tubular epithelium. D D- Secreted by endothelial cells of peritubular capillaries.

The primary factor that regulates erythropoietic activity is

A a. the kidney B b. erythropoietin C c. the erythroid colony-forming unit D d. oxygen

In malaria infection, man acts as:

A a- Intermediate host B B- Definitive host C c- Reservoir host D d- Both intermediate & definitive hosts

. Nephrotic syndrome in Plasmodium malariae is due to:

A a- Deposition of immune-complexes in glomerular capillaries. B b- The severe anemia C c- Hypoproteinemia D d- Hypoglycemia

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