2012 I&I exam Flashcards
What type of cells is the most common in the cortex of the Lymph Node?
a. Macrophage
b. T lymphocyte
c. B Lymphocyte
c. B Lymphocyte
Which of the following best describes the thymus?
a. It is active during fetal life
b. It remains active throughout life
c. It attains functional maturity at puberty
d. It is most functional during the fifth decade of life
a. It is active during fetal life
What can you find in the white pulp?
a. fibro-elastic dense irregular tissue
b. Germinal Centers
c. Hassall’s corpuscles
b. Germinal Centers
Which TWO of the following epithelioreticular cells contribute to the maturation of T Cells?
a. type I epithelioreticular cells
b. type II epithelioreticular cells
c. type IV epithelioreticular cells
d. type V epithelioreticular cells
b. type II epithelioreticular cells
&
d. type V epithelioreticular cells
What type of cells line the splenic sinuses?
a. round cells
b. elongated cells
c. star-shaped cells
b. elongated cells
Khalid, a 20-year old college student, is a sensation seeker and engages in physical and social challenges associated with health-related behaviors that may put him at risk of acquiring an STD. What is the characteristic associated with Khalid’s behavior?
A. He underestimates the risk involved
B. Has siblings with a “sensation seeker” personality
C. He’s an idiot
A. He underestimates the risk involved
An infection has a reproductive rate of 1. Which of the following is true?
a. the infection is epidemic
b. the infection is pandemic
c. the infection is endemic
c. the infection is endemic
A child presented with recurrent infections. He suffered from eczema and had bloody diarrhea. A blood count revealed thrombocytopenia. What immune defect is this?
a. Hyper IgM syndrome
b. Wiskott Aldrich syndrome
c. Catch 22 anomaly
d. Chédiak Higashi syndrome
b. Wiskott Aldrich syndrome
Intervillositis with pigmentation in Macrophage of Fibrin deposit and prominent cytotrophoblast. What organism causes this condition?
Plasmodium intrauterine
(Plasmodium intrauterine infection is characterized by a large number of macrophages and histiocytes between the villi and the production of the malaria pigment called hemozoin, which prevents the toxic effects of heme)
During lab diagnosis, the result was Intranuclear inclusions with fusion of epithelial cells. What is the causative microorganism?
a. Cytomegalovirus
b. Herpes Simplex Virus
c. Human Papilloma Virus
b. Herpes Simplex Virus
How do we prevent a respiratory infection?
a. N95 Respirator Mask
b. N99 Respirator Mask
a. N95 Respirator Mask
Which drug can cause lipodystrophy?
a. Maraviroc
b. Raltegravir
c. Saquinovir
c. Saquinovir
protease inhibitor
What is most common in burn patients?
Pseudomonas aeruginosa
Which country has a prevalence of both types of urinary and intestinal schistosomiasis?’
a. china
b. egypt
c. brazil
b. egypt
What is the most important virulence factor of yersinia pestis?
a. pilli
b. Capsule
c. V and W antigens
d. Yops
b. Capsule
Which Method is best used for sterilization of Plasma Solutions?
a. Incineration
b. Autoclave
c. Membrane Filtration
d. Pasteurization
c. Membrane Filtration
Where is the highest incidence of Yellow fever?
a. congo
b. GCC countries
c. south america
d. egypt
c. south america
Which bacterium uses rats as the reservoir?
a. Bordetella pertussis
b. Yersinia pestis
b. Yersinia pestis
What is responsible for anaphylactic reactions?
a. B cells
b. Mast cells
c. Macrophage
b. Mast cells
Which complement attracts neutrophils to the infection site?
C3a
another exam says C5a
Why do we change a toxin to a toxoid?
a. to increase immunogenicity
b. to decrease pathogenicity
c. to increase complement response
b. to decrease pathogenicity
What does the antiviral “Fomivirsen” inhibit in a virus?
a. The Primary Stage of Protein Synthesis, which is mRNA Translation
b. The Primary Stage of Protein Synthesis, which is tRNA Translation
c. The Secondary Stage of Protein Synthesis, which is mRNA Translation
d. The Secondary Stage of Protein Synthesis, which is tRNA Translation
a. The Primary Stage of Protein Synthesis, which is mRNA Translation
Which country has the highest absolute number of TB cases?
a. Africa
b. America
c. South East Asia
d. Nigera
c. SouthXEast Asia
a= highest incidence, not highest absolute number
Which cell helps the spread of HIV to the central nervous system?
Macrophages
How do you slow down proteolytic enzymes?
by cold temperature
Where is meningococcal meningitis most frequent?
a. Egypt
b. America
c. South East Asia
d. Nigeria
d. Nigeria
A-79-year-old man developed fever swelling pain in the knees 2 weeks ago; he attended his camel delivery. What is the causative organism?
a. Brucella abortus
b. Brucella melitensis
c. Brucella suis
b. Brucella melitensis
Which bacterium is the Reservoir of cattle?
a. Brucella abortus
b. Brucella melitensis
c. Brucella suis
a. Brucella abortus
What characterizes IgA?
a. Predominant in the RT
b. Predominant in the GIT
c. Predominant in the urinary tract
b. Predominant in the GIT
Which of the people perceive themselves to have been at risk of HIV?
the worried well
SubKPleural granulomatous nodule with granulomatous lymphadenitis. What is the causative microorganism?
Mycobacterium tuberculosis
