2010 I&I Flashcards
What makes an adolescent more vulnerable to risk-taking behaviors?
a. Egocentrism
b. Family disruption
b. Family disruption
where are radio labeled leukocytes found?
Spleen
salmonella is most likely found in which type of food?
Chicken
which of the following characterizes precipitation?
Soluble antigen-antibody complex
what is the correct order of spleen blood supply?
a. Celiac artery - splenic artery - central artery
b. Splenic artery - trabecular artery - central artery
b. Splenic artery - trabecular artery - central artery
which of the following is an anti-staph beta-lactamase stable?
Cloxacillin
What’s used to treat congenital listeriosis?
Ampicillin
how does ampicillin produce its effect?
Lysis of cell wall
What causes congenital malformity after being in contact with kittens?
Toxoplasmosis
a patient presented with a hard edge penile ulcer, what is the cause?
Syphilis
After of catheter from a patient, there was a redness in the site of insertion, what most likely would be the cause?
Coagulase-negative staphylococcus
What is found in the deep cortex of the lymph node?
High endothelial venules
what prenatal infection can be prevented by giving immunoglobulin and vaccines to the baby at birth?
Hepatitis B
what antiviral inhibit replication of a virus in an infected cell though being activated by thymidine kinase?
Acyclovir
what is a characteristic of CMV?
Crosses the placenta
What reaction does the tuberculin test utilize?
Type 4 Hypersensitivity reaction
what does HLA-1 bind to?
T cytotoxic
what differentiates between T cells and B cells?
Antigen binding sites
What’s used to treat pneumocystis jiroveci?
a. Colistin
b. Ciprofloxin
c. trimethoprime-sulphinamide
d. amikacin
e. ceftazedim
c. trimethoprime-sulphinamide
what is the mechanism of resistance in methicillin-resistant staphylococcus aureus?
Alteration of penicillin-binding protein
which of the following cause villitis?
CMV
what the mechanism of action of caspofungin?
Inhibition of beta 1,3 glucan
Which cells are used to measure the severity of HIV?
CD4 Th
how do T cytotoxic cells do their job?
By activating apoptosis
which of the following is activated by Th1?
Macrophages
where does self-tolerance take place?
Fetal life
which of the causes cervical cancer?
Human papilloma virus (16,18)
what is the main symptom that characterizes congenital listeriosis?
Granuloma infantisepticum
what drug is used in the case of influenza that is resistant to oseltamvir?
Zanamivir
Penicillin is given prophylactically to prevent which of the following in a child with rheumatoid fever?
Streptococcus pyogenes
what is the most infectious virus in the hospital?
VZV
which of the following cytokines anti-inflammatory?
a. IL-5
b. IL-10
c. IL-24
b. IL-10
What type of immunity is induced by live attenuated vaccines?
Humoral & cell mediated immunity
what is the main test used in pyrexia of unknown origin?
Blood culture
what of the following characterize the epidemiology of TB?
One-third of the population is infected
which of the following viral STDs can be prevented by a vaccine?
Human papilloma virus
which of the following cause progressive multifocal leukoencephalopathy?
JC virus
which of the following is true regarding vaccination policy?
MMR at first year of life
which of the following hypersensitivity reactions causes rheumatoid arthritis?
Type III Hypersensitivity
why do people get repeatedly infected by influenza virus?
they are infected by different strain each time
