5. It is important to identify individual members of the group D streptococci be

Question

5. It is important to identify individual members of the group D streptococci because a. viridans streptococci are often confused with enterococci b. several enterococci cause severe puerperal sepsis c. nonenterococcal group D streptococci are avirulent d. enterococci often show more resistance to penicillin than other group D streptococci 6. A gram positive which is B hemolytic on sheep blood agar is catalase negative and bacitracin positive. This is presumptive identification of? a. Streptococcus agalactiae b. Streptococcus bovis c. Streptococcus faecalis d. Streptoccocus pyogenes For each numbered word or phrase, select the heading that is most closely related to it ferments mannitol, salt tolerant and is DNA positive ferments glucose and maltose and is oxidase positive salt tolerant, does not ferment mannitol and is DNA neg 7 9 ferments glucose and is oxidase positive inert biochemical and is oxidase positive a. Neisseria meningitidis b. Neisseria gonorrhoeae c. Moraxella catarrhalis d. Staphylococcus aureus e. Staphylococcus epidermidis 12. A urine Gram stain shows gram-positive cocci in clusters. The organism tested catalase positive. To speciate this organism from culture, the thecnologist should perform a cuagulase test and a. SXT susceptibility b. Novobiocin susceptibility c. Oxidase d. Beta-lactamase

Explanation / Answer

5 ans-Enterococci often show more antibiotic resistance than group D streptococci.

Group D streptococci are sometimes -hemolytic, depending on the conditions.

6 ans-streptococcus pyrogens which is a group A antibiotic.

7 ans-Staphylococcus aureus

Produced yellow coloured colonies as it ferment mannitol.

8- ans-neisseria meningitis

Catalase and oxidase positive, glucose and maltose are fermented with acid production and no gas.

9-staphylococcus epidermis does not fermented mannitol

Related Questions

Navigate

• Browse (All)
• Browse 5
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.