BOC Microbiology Prep Exam Questions And Correct Complete Answers.
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Course
BOC Microbiology
Institution
BOC Microbiology
Acute glomerulonephritis - Answer Children who have infections with beta-hemolytic streptococci can develop:
Beta-lactamase - Answer Haemophilus influenzae becomes resistant to ampicillin when the organism produces a(n):
There is a decreased absorption of oxygen by the medium - Answer ...
BOC Microbiology Prep Exam Questions
And Correct Complete Answers.
Acute glomerulonephritis - Answer Children who have infections with beta-hemolytic streptococci can
develop:
Beta-lactamase - Answer Haemophilus influenzae becomes resistant to ampicillin when the organism
produces a(n):
There is a decreased absorption of oxygen by the medium - Answer Thioglycollate broth is stored at
room temperature and in the dark so that:
Examined for the presence of Campylobacter sp - Answer A liquid fecal specimen from a three-month-
old infant is submitted for microbiologic examination. In addition to culture on routine media for
Salmonella and Shigella, this specimen routinely should be:
Deterioration of the methicillin disks - Answer An unusual number of methicillin-resistant
Staphylococcus aureus (determined by the Bauer-Kirby method) were isolated in the laboratory in the
past month. Which of the following is the most likely explanation?
Call the nursing station and request a new specimen - Answer A gram-stained sputum smear revealed
25-50 squamous epithelial cells and 10-25 polymorphonuclear leukocytes per 100x field, as well as many
lancet-shaped, gram-positive cocci; many gram-negative rods; and many gram-positive cocci in pairs,
clumps, and long chains. The technologist's best course of action would be to:
Urine for culture of acid-fast bacilli - Answer Which one of the following specimen requests is
acceptable?
Streptococcus agalactiae (group B) - Answer A gram-positive coccus isolated from a blood culture has
the following characteristics:
, *Optochin susceptibility -- Negative
*Bacitracin (0.04 U) susceptibility -- Negative
*Bile esculin hydrolysis -- Negative
*Hippurate hydrolysis -- Positive
*Catalase -- Negative
The organism is most likely:
Pasteurella multocida - Answer A gram-negative rod was isolated from a wound infection caused by a
bite from a pet cat. The following characteristic reactions were seen:
*Oxidase -- positive
*Glucose OF -- Fermentative
*Catalase -- Positive
*Motility -- negative
*MacConkey agar -- no growth
Which of the following is the most likely organism?
Yersinia enterocolitica - Answer A 10-year-old boy was admitted to the emergency room with lower
right quadrant pain and tenderness. The following laboratory results were obtained:
Segs: 75% (Norm: 16%-60%)
WBC: 200 x 10^3/uL (Norm: 13.0 x 10^3/uL)
The admitting diagnosis was appendicitis. During surgery the appendix appeared normal; an enlarged
node was removed and cultured. Small gram-negative rods were isolated from the room temperature
plate. The organism most likely is:
Lactophenol cotton blue - Answer Which of the following is most often used to prepare a slide from a
plate culture of a dermatophyte for microscopic observation?
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