2010 I&I

Question 1

What makes an adolescent more vulnerable to risk-taking behaviors?

a. Egocentrism
b. Family disruption

Answer 1

b. Family disruption

Question 2

where are radio labeled leukocytes found?

Answer 2

Spleen

Question 3

salmonella is most likely found in which type of food?

Answer 3

Chicken

Question 4

which of the following characterizes precipitation?

Answer 4

Soluble antigen-antibody complex

Question 5

what is the correct order of spleen blood supply?

a. Celiac artery - splenic artery - central artery
b. Splenic artery - trabecular artery - central artery

Answer 5

b. Splenic artery - trabecular artery - central artery

Question 6

which of the following is an anti-staph beta-lactamase stable?

Answer 6

Cloxacillin

Question 7

What’s used to treat congenital listeriosis?

Answer 7

Ampicillin

Question 8

how does ampicillin produce its effect?

Answer 8

Lysis of cell wall

Question 9

What causes congenital malformity after being in contact with kittens?

Answer 9

Toxoplasmosis

Question 10

a patient presented with a hard edge penile ulcer, what is the cause?

Answer 10

Syphilis

Question 11

After of catheter from a patient, there was a redness in the site of insertion, what most likely would be the cause?

Answer 11

Coagulase-negative staphylococcus

Question 12

What is found in the deep cortex of the lymph node?

Answer 12

High endothelial venules

Question 13

what prenatal infection can be prevented by giving immunoglobulin and vaccines to the baby at birth?

Answer 13

Hepatitis B

Question 14

what antiviral inhibit replication of a virus in an infected cell though being activated by thymidine kinase?

Answer 14

Acyclovir

Question 15

what is a characteristic of CMV?

Answer 15

Crosses the placenta

Question 16

What reaction does the tuberculin test utilize?

Answer 16

Type 4 Hypersensitivity reaction

Question 17

what does HLA-1 bind to?

Answer 17

T cytotoxic

Question 18

what differentiates between T cells and B cells?

Answer 18

Antigen binding sites

Question 19

What’s used to treat pneumocystis jiroveci?

a. Colistin
b. Ciprofloxin
c. trimethoprime-sulphinamide
d. amikacin
e. ceftazedim

Answer 19

c. trimethoprime-sulphinamide

Question 20

what is the mechanism of resistance in methicillin-resistant staphylococcus aureus?

Answer 20

Alteration of penicillin-binding protein

Question 21

which of the following cause villitis?

Answer 21

CMV

Question 22

what the mechanism of action of caspofungin?

Answer 22

Inhibition of beta 1,3 glucan

Question 23

Which cells are used to measure the severity of HIV?

Answer 23

CD4 Th

Question 24

how do T cytotoxic cells do their job?

Answer 24

By activating apoptosis

Question 25

which of the following is activated by Th1?

Answer 25

Macrophages

Question 26

where does self-tolerance take place?

Answer 26

Fetal life

Question 27

which of the causes cervical cancer?

Answer 27

Human papilloma virus (16,18)

Question 28

what is the main symptom that characterizes congenital listeriosis?

Answer 28

Granuloma infantisepticum

Question 29

what drug is used in the case of influenza that is resistant to oseltamvir?

Answer 29

Zanamivir

Question 30

Penicillin is given prophylactically to prevent which of the following in a child with rheumatoid fever?

Answer 30

Streptococcus pyogenes

Question 31

what is the most infectious virus in the hospital?

Answer 31

VZV

Question 32

which of the following cytokines anti-inflammatory? a. IL-5 b. IL-10 c. IL-24

Answer 32

b. IL-10

Question 33

What type of immunity is induced by live attenuated vaccines?

Answer 33

Humoral & cell mediated immunity

Question 34

what is the main test used in pyrexia of unknown origin?

Answer 34

Blood culture

Question 35

what of the following characterize the epidemiology of TB?

Answer 35

One-third of the population is infected

Question 36

which of the following viral STDs can be prevented by a vaccine?

Answer 36

Human papilloma virus

Question 37

which of the following cause progressive multifocal leukoencephalopathy?

Answer 37

JC virus

Question 38

which of the following is true regarding vaccination policy?

Answer 38

MMR at first year of life

Question 39

which of the following hypersensitivity reactions causes rheumatoid arthritis?

Answer 39

Type III Hypersensitivity

Question 40

why do people get repeatedly infected by influenza virus?

Answer 40

they are infected by different strain each time