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Crank
3 years ago
11

A 35-year-old woman presented to the oral surgeon with an extremely painful molar tooth and a swollen gum. She reports that the

area "tastes bad." She has a fever, and the area is tender to the touch.
The surgeon drained the area of several milliliters of foul-smelling pus which was sent to the lab for aerobic and anaerobic culture and Gram stain.

1. Which of the following represents the expected Gram stain report?

A . WBCs and gram-positive cocci
B . WBCs and gram-negative rods
C . WBCs and a mixture of organisms
D . No WBCs seen, no organisms seen

2 . Which of the following represents the expected culture report?

A . Pure culture of Staphylococcus aureus
B . Pure culture of Streptococcus pyogenes
C . Mixed organisms representing normal oral microbiota
D . Mixed aerobic and anaerobic organisms

3. What is the usual treatment for this type of infection?

A . Surgical debridement and broad-spectrum antibiotics
B . Penicillin
C . Amoxicillin
D . None is required for normal organisms

4 . For what organism may the surgeon be particularly concerned if the infection appeared to be spreading through "sinus tracts"?

A . Actinomyces israelii
B . Streptococcus pyogenes
C . Escherichia coli
D . Bacteroides fragilis

5 . Why is this organism (#4) of concern?

A . It is notoriously resistant to antibiotics
B . It requires prolonged antibiotic therapy
C . It is highly contagious
D . It is pigmented
Biology
1 answer:
Ne4ueva [31]3 years ago
6 0

Answer:

1. A

2. B

3. A

4. B

5. B

Explanation:

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Answer: In Spanish

¿Cómo se vuelven resistentes las bacterias a los antibióticos?

R: Las bacterias pueden volverse resistentes a los antibióticos de varias maneras. Algunas bacterias pueden "neutralizar" un antibiótico cambiándolo de una manera que lo hace inofensivo. Otros han aprendido a bombear un antibiótico fuera de la bacteria antes de que pueda causar algún daño. Algunas bacterias pueden cambiar su estructura externa, por lo que el antibiótico no tiene forma de adherirse a la bacteria que está diseñada para matar.

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Answer in English :

How do bacteria become resistant to antibiotics?

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I don't know if this help you at all.

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