Quiz: Microbiology

1- Moraxella catarrhalis is a gram-negative diplococcus which cause:

A a- Bronchitis B b- Pneumonia C c- Sinusitis D d- All of the above

2- The most common bacterial cause for otitis media is:

A a- Staph Aureus B b- Strep pneumonia C c- Pseudomonas aeruginosa D d- Strept pyogenes

3- The most common cause of neonatal pneumonia is:

A a- Strept Pyogenes B b- Enterococcus faecalis C c- E. Coli D d- Chlamydia trachomatis

4- Which of the following corona virus can cause pneumonia?

A a- SARS Cov B b- MERS Cov C c- SARS Cov D d- All of the above

5- Atypical pneumonia is caused by:

A a- Strept pneumonae B b- Mycoplasma pneumonae C c- Klebsiella pneumonae D d- None of the above

6- The commonest cause for common cold is:

A a- Adenovirus B b- Rhinovirus C c- Corona virus D d- Enterovirus

7- Typical pneumonia caused by:

A a- Mycoplasma pneumonae B b- Chlamydia pneumonae C c- Klebsiella pneumonae D d- Coxiella burnetii

8- The selective culture media for isolation of tubercle bacilli is:

A a- Lowenstein-Jensen medium B b- Blood agar C c- Mannitol salt agar D d- MacConkey agar medium

9- Tuberculin test is an intradermal test used for diagnosis of:

A a- Diphtheria B b- Leprosy C c- Tuberculosis D d- Typhoid fever

10- The most important bacterial cause for epiglottitis is:

A a- Staph aureus B b- Strept pyogenes C c- H. Influenzae D d- Strept pneumonae

11- Viral rhinosinusitis differs from bacterial rhino-sinusitis in the followings except:

A a- Bacterial is less than10 days duration. B b- Bacterial is high fever ≥ 39◦C. C c- Bacterial contain purulent nasal discharge ≥ 3 consecutive days D d- Bacterial present wit facial pain ≥3 consecutive days

12- When suspect pulmonary tuberculosis, you can ask the patient to bring 3 morning sputum samples. You can regard that it is a positive sample when you found:

A a- Gram positive bacilli B b- Gram negative bacilli C c- Acid fast bacilli (AFB) D d- Methylene blue positive bacilli

13- The main virulence factor in TB pathogenesis is:

A a- Bacteria's ability to survive inside the bronchi. B b- Bacteria's ability to destroy the macrophage. C c- Bacteria's ability to destroy the pulmonary tissue. D d- Bacteria's ability to survive inside the macrophage e- All of the above

Moraxella catarrhalis is a gram-negative diplococcus which cause:

A a- Bronchitis B b- Pneumonia C c- Sinusitis D d- All of the above

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