( Edit View Insert Format Tools Table 12pt Paragraph )Bacteriology exam
Started: Sep 25 at 6:30am

Quiz Instructions
( a.measuring the zone of inibition around an ampicillin disc measring the zone of inhibition around an oxacillin disc pH increase if idone is reduced using chromagenic cephalosporin (nitrocefin) disc 1. Beta-lactamase production can be detected by: 1 pts Question 1 )

( a. MacConkey agar, 35°C, room air Thiosulfate citrate bile salt sucrose agar, 35°C, room air Campy CVA medium, 35°C, anaerobic conditions Campy CVA medium, 42°C, microaerophilic conditions 2. Isolation of Campylobacter jejuni requires a specific set of culture conditions. The optimal conditions for isolating this stool pathogen are: 1 pts Question 2 )

( Question 3 1 pts )

( 9/25/21, 6:13 PM ) ( Quiz: Bacteriology exam )

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( ale with COPD (chronic obstructive phils and a predominance of Gram negative on the smear. What organism would you ) ( m )

( 3. A sputum specimen from a 55 year old pulmonary disease) showed many neutro diplobacilli. No other organisms are seen expect to isolate? Edit View Insert Format Tools Table 12pt Paragraph Neisseria gonorrhea Neisseria meningitidis Brahamella (Moraxella) catarrhalis Staphylococcus aureus )

( methyl red bromthymol blue bromcresol purple methylene blue 4. You have been using Clostridium tetani to test the anaerobic conditions of your anaerobic jar. You would like to introduce an oxidation-reduction indicator strip into the anaerobic methodology which would be observed without opening the jar. Which of the following should you use? 1 pts Question 4 )

( 5. In the quality control testing of modified Thayer-Martin agar, the following performance testing results are seen after 48 hours of incubation in 10% C02: 1 pts Question 5 )

( Neisseria gonorrhoea: growth Neisseria meningitidis: growth Staphylococcus aureus: no growth Escherichia coli: no growth Proteus mirabilis: no growth Candida albicans: growth You, as quality control technologist, would: Edit View Insert Format Tools Table 12pt Paragraph recheck the performance of nystatin recheck the antibiotic vancomycin recheck inhibitory action of colistin approve this batch of media )

( a.measuring the zone of inibition around an ampicillin disc. the PYR test. the porphin test. fluorescent antibody staining with specific antisera. 6. Opalescent colonies of a faint staining slender Gram negative rod were isolated on charcoal yeast extract agar from a lung biopsy performed on a patient hospitalized with pneumonia. Confirmation of the identification of this isolate can be performed by: 1 pts Question 6 )

( 1 pts Question 7 )

( he clinical laboratory to check all media nts for positive and negative reactions, )

( Edit View Insert Format Tools Table 7. A set of stock cultures is maintained in t and reagents. To check media and reage 12pt Paragraph which of the following combinations are appropriate? d. using chromagenic cephalosporin (nitrocefin) disc . Catalaase: Staph aureus, Listeria monocytogenes c. Hydrogen Sulfide Production: Salmonella typhii, Proteus mirabilis d. Indole: E. coli, Proteus vulgaris )

( most likely indicate urethral or perineal flora most likely indicate a urinary tract infection caused by the E. coli and contamination by the Corynebacterium sp most likely indicate a urinary tract infection being caused by two organisms be reported as normal flora in urine 8. A clean catch urine culture which grew out >100,000/ml E. coli and10,000/ml Corynebacterium sp. would: 1 pts Question 8 )

( 9. Nocardia asteroides can cause chronic pulmonary infections. Nocardia asteroides can be differentiated from other Nocardia species by: 1 pts Question 9 )

( Edit View Insert Format Tools Table a. stainign with the modified aid fast stain 12pt Paragraph growth on Lowenstein-Jensen medium inability to hydolyze casein, tyrosine, or xanthine hydrolysis of urea )

( Clostridium Corynebacterium Actinomyces Nocardia 10. A swab from a facial abscess was sent to the laboratory for culture. The following results were obtained: Gram stain: WBC, filamentous, long Gram positive rods, some branching BAP: No growth after seven (7) days incubation Thioglycollate: Growth in the bottom of the tube with discrete colonies, no gas produced. The organism is most likely a member of the genus: 1 pts Question 10 )

( 11. A 13 year old female patient complains of a very sore throat. The throat swab that is submitted for culture