Test #5 Sample Test A


1. A patient has elevated eosinophils in a differential white cell count. The most likely cause is related to which of the following?
a. exposure to an exotoxin
b. viral infection
c. intracellular bacterial infection
d. allergic reaction
e. transplant tissue
2. Which of the following is NOT a formed element of the blood?
a. erythrocyte
b. antibody
c. monocyte
d. lymphocyte
e. platelet
3. Which of the following would NOT be characteristic of an exotoxin?
a. usually produced by Gram positive cell
b. heat labile
c. low LD50
d. made of LPS
e. secreted protein
4. Which of the following would most likely be considered an opportunistic pathogen?
a. E. coli
b. Vibrio cholera
c. Candida albicans
d. Bacillus subtilis
e. Salmonella typhi
5. After the attachment and entry of a virus into a host cell, what is the next step in the multiplication of animal viruses?
a. transcription of "early" genes
b. transcription of "late" genes
c. synthesis of capsid proteins
d. uncoating
e. release
6. The nucleic acid of a virus is surrounded by a protein coat called which of the following?
a. Endospore
b. Capsid
c. Envelope
d. Halo
e. Capsule
7. Which of the following would NOT be considered an example of a disease tranmitted via zoonoses?
a. Lyme disease
b. rabies
c. diptheria
d. yellow fever
e. malaria
8. Which of the following would be a bacteria NOT normally associated human beings?
a. Lactobacillus sp.
b. Staphylococcus epidermidis
c. Escherichia coli
d. Streptococcus mutans
e. Bacillis subtilis
9. Viruses that infect bacteria are called which of the following?
a. Virions
b. Polyhedral virus
c. Bactericides
d. Hepadnaviridae
e. Bacteriophages
10. The only disease to be eradicated from human beings is which of the following?
a. measles
b. chicken pox
c. mumps
d. small pox
e. rabies
11. Which of the following immunoglobins is a pentamer with a half-life of about 5 days?
a. IgG
b. IgE
c. IgM
d. IgD
e. IgA
12. The most common type of nosocomial infection whould be which of the follwoing?
a. urinary tract
b. surgical site
c. blood
d. respiratory
e. skin
13. A double-stranded, enveloped DNA virus that contains reverse transcriptase belongs to which family?
a. Retroviridae
b. Picornaviridae
c. Poxviridae
d. Rhabdoviridae
e. Hepadnaviridae
14. Which of the following is most likely too small to ellict an immune response?
a. penicillin
b. lysozyme
c. tetnus toxin
d. beta-galactosidase
e. anthrax bacteria
15. The portal of entry for Vibrio cholerae is most likely which of the following?
a. respiratory
b. genitourinary
c. skin or parenteral
d. conjunctival
e. gastrointestinal
16. Which of the following would probably NOT be considered a fomite?
a. handkerchief
b. toilet seat
c. drinking cup
d. mucus droplet
e. diaper
17. Which of the following would NOT be an enzyme that would promote bacterial virulence?
a. streptokinase
b. coagulase
c. hyaluronidase
d. hexokinase
e. cologenase
18. Which of the following would NOT be considered a non-specific host defense?
a. sebum
b. beta-galactosidase
c. persperation
d. gastric juice
e. lysozyme
19. Opsonization promotes which of the following?
a. coating of pathogens to promote phagocytosis
b. lysis of pathogens
c. vasodilation of cappillaries at site of infection
d. complement activation
e. none of the above
20. Which of the following is NOT involved in circulating antibody production?
a. helper T cells
b. antigen presenting cell
c. plasma cell
d. self antigen
e. perforin