Final Review Microbiology Lab

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Sandrayang
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54145
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Final Review Microbiology Lab
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2010-12-07 20:43:12
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Lab Final review
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lab final review
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  1. The organism which is considered pathogenic if found in the throat is:
    A) Streptococcus pneumoniae
    B) Enterococcus faecalis
    C) Streptococcus pyogenes
    D) viridans groups Streptococcus
    C) Streptococcus pyogenes
    (this multiple choice question has been scrambled)
  2. The most common organism found as normal flora of the skin is:
    A) Escherichia coli
    B) Staphylcoccus epidermidis
    C) Staphylcoccus aureus
    D) Streptococcus pyogenes
    B) Staphylcoccus epidermidis
    (this multiple choice question has been scrambled)
  3. Several cases of bacterial meningitis occur in a college dorm. Neisseria meningitidis grows on culture. What is the most likely route of transmission?
    A) indirect contact
    B) respiratory droplets
    C) fecal/oral
    D) bloody, body fluids, and sexual
    B) respiratory droplets
    (this multiple choice question has been scrambled)
  4. All of the following bacteria produce a capsule with the exception of
    A) Staphyloccucs aureus
    B) Klebsiella pneumoniae
    C) Haemphilus influenzae type B
    D) Streptococcus pneumoniae
    A) Staphyloccucs aureus
    (this multiple choice question has been scrambled)
  5. Streptococcus agalactiae is the most common cause of:
    A) respiratory tract infection
    B) sepsis and menigitis in newborn
    C) endocarditis
    D) menigitis in the elderly
    B) sepsis and menigitis in newborn
    (this multiple choice question has been scrambled)
  6. Hemoptysis is a common sign of:
    A) Bordetella pertussis
    B) Streptococcus pyogenes
    C) Corynebacterium diphtheriae
    D) Mycobacterium tuberculosis
    D) Mycobacterium tuberculosis
    (this multiple choice question has been scrambled)
  7. Leprosy is also referred to as:
    A) impetigo
    B) TB
    C) Hansen's disease
    D) consumption
    C) Hansen's disease
    (this multiple choice question has been scrambled)
  8. Which species of Mycobacterium causes tuberculosis of the digestive tract from drinking unpasteurized milk from infected cows?
    A) M. tuberculosis
    B) M. leprae
    C) M. avium-intracellulare
    D) M. bovis
    D) M. bovis
    (this multiple choice question has been scrambled)
  9. An AIDS patient has a reaction to PPD with a diameter of 5 mm. How would this test be interpreted?
    a) negative
    b) positive
    b) positive
  10. Which statement is not true of M. tuberculosis?
    A) AIDS patients have a higher risk of getting TB
    B) a positive skin test always indicates active disease
    C) the organism can remain viable in dried sputum for 6-8 months
    D) treatment regiments usually extend up to one year
    B) a positive skin test always indicates active disease
    (this multiple choice question has been scrambled)
  11. Which antibiotic group has the highest rate of allergic reactions?
    A) cephalosporin
    B) tetracycline
    C) penicillin
    D) sulfonamide
    C) penicillin
    (this multiple choice question has been scrambled)
  12. Kirby Bauer testing is useful for determining
    A) whether side effects will result from use of an antibiotic
    B) the minimum inhibitory concentration of an antibiotic
    C) which antibiotic may be employed to treat an infection
    D) synergistic effect of antibiotics
    C) which antibiotic may be employed to treat an infection
    (this multiple choice question has been scrambled)
  13. A patient is currently receiving ampicillin for an infection. The culture report comes back to the floor, and states that Staphylococcus aureus is in the culture site. The antibiotic sensitivity report will be available the next day. The antibiotic:
    a) will probably work and shouldn't be changed
    b) the doctor should be contacted immediately to change the antibiotic
    b) the doctor should be contacted immediately to change the antibiotic
  14. Vancomycin is used to treat infections caused by:
    A) Haemophilus influenzae
    B) enteric gram negative rods
    C) Methicillin resistant Staph aureus
    D) Neisseria gonorrhoeae
    C) Methicillin resistant Staph aureus
    (this multiple choice question has been scrambled)
  15. Which of these bacteria are resistant to many antibiotics?
    A) Klebsiella and Serratia
    B) Serratia and Pseudomonas
    C) Proteus and E.coli
    D) Pseudomonas and Klebsiella
    B) Serratia and Pseudomonas
    (this multiple choice question has been scrambled)
  16. Two bacteria are commonly seen together in acute necrotizing ulcerative gingivitis (ANUG), a serious periodontal disease. Fusobacterium or other anaerobic Gram negative rods are usually seen with the primary organism, which is:
    A) Borrelia burgdorferi
    B) Treponema pallidum
    C) Treponema vincenti
    D) Streptococcus mutans
    C) Treponema vincenti
    (this multiple choice question has been scrambled)
  17. Peptostreptococcus are an anaerobic
    A) Gram negative cocci
    B) Gram negative rod
    C) Streptococcus
    D) Staphylcoccus
    C) Streptococcus
    (this multiple choice question has been scrambled)
  18. An intestinal normal flora bacteria that can overgrow and cause pseudomembranous colitis after antibiotics wipe out its competing flora is
    A) Clostridium tetani
    B) Clostridum difficile
    C) Corynebacterium diphtheriae
    D) Clostridium botulism
    B) Clostridum difficile
    (this multiple choice question has been scrambled)
  19. The physician suspects that his patient has diphtheria. Which of the following symptoms were observed?
    A) pseudomembrane covering the pharynx causing difficulty breathing
    B) chest pain with productive coughing
    C) stiff neck and petechiae
    D) earache with lethargy and vertigo
    A) pseudomembrane covering the pharynx causing difficulty breathing
    (this multiple choice question has been scrambled)
  20. A patient develops foul-smelling gaseous discharge following surgery for a perforated appendix. Culture of the discharge will most likely grow:
    A) Pseudomonas aeruginosa
    B) Staphylococcus aureus
    C) Clostridium perfringens
    D) Bordetella pertussis
    C) Clostridium perfringens
    (this multiple choice question has been scrambled)
  21. A chemical agent which halts bacterial growth but does not kill the cells would be termed:
    A) chemisterilant
    B) bacteriostatic
    C) bactericidal
    D) disinfectant
    B) bacteriostatic
    (this multiple choice question has been scrambled)
  22. Which of the following agents kills bacterial spores relatively quickly and is used in many hospitals?
    A) alcohols
    B) iodine
    C) pasteurization
    D) Ethylene Trioxide Chamber (ETO)
    D) Ethylene Trioxide Chamber (ETO)
    (this multiple choice question has been scrambled)
  23. This halogen class of agent is commonly used in the hospital as a skin antiseptic before starting an IV or drawing a blood culture.
    A) propyl alcohol
    B) iodophor (Betadine)
    C) hexachlorophene (Phisohex)
    D) glutaraldehyde
    B) iodophor (Betadine)
    (this multiple choice question has been scrambled)
  24. Commonly used antiseptics include all except:
    A) 70% alcohol
    B) Betadine (iodophor)
    C) Hibiclens (chlorhexidine)
    D) formalin
    D) formalin
    (this multiple choice question has been scrambled)
  25. Sporicidal soaks used for delicate instruments that cannot be autoclaved contain:
    A) chlorhexidine
    B) cationic detergents
    C) quaternary ammonium
    D) glutaraldehyde
    D) glutaraldehyde
    (this multiple choice question has been scrambled)
  26. Which of the following is the most common cause of urinary tract infections?
    A) Staphylococcus aureus
    B) Proteus mirabilis
    C) Pseudomonas aeruginosa
    D) E. coli
    D) E. coli
    (this multiple choice question has been scrambled)
  27. Two food-borne pathogens commonly found in undercooked poultry are:
    A) E. coli 0157:H7 and Yersinia
    B) Yersinia and Shigella
    C) Shigella and Salmonella
    D) Salmonella and Campylobacter
    D) Salmonella and Campylobacter
    (this multiple choice question has been scrambled)
  28. This gram negative rod is a common water inhabitant often found among the flora of the intestinal tract. It has a green pigment, and commonly causes pneumonia in cystic fibrosis patients and infection in burn wounds.
    A) Klebsiella pneumoniae
    B) Pseudomonas
    C) E. coli
    D) Serratia
    B) Pseudomonas
    (this multiple choice question has been scrambled)
  29. This food-borne illness is so highly infective that as few as 10 ingested organisms can cause disease. It is commonly associated with seafood.
    A) Salmonella species
    B) Staphylococcus aureus
    C) E. coli
    D) Shigella species
    D) Shigella species
    (this multiple choice question has been scrambled)
  30. The lab tech is performing a colony count from a patient's midstream urine specimen. She used a .001 ml calibrated loop to inoculate the blood and EMB agar plates. She observes over 100 colonies on both the blood agar and the EMB agar. The report will read:
    A) 1,000 colonies/mL of probable skin contaminant
    B) 100,000 colonies/mL of a probable gram negative rod
    C) >100,000 colonies/mL of a probable gram positive bacteria
    D) >100,000 colonies/mL of a probable gram negative rod
    D) >100,000 colonies/mL of a probable gram negative rod
    (this multiple choice question has been scrambled)

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