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ATI RN · Microbiology · medical microbiology test bank

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which bacteria is responsible for causing botulism?

A. Clostridium botulinum

B. Staphylococcus aureus

C. Bacillus anthracis

D. Pseudomonas aeruginosa

Expert Explanatory Rationale

Correct Answer: Clostridium botulinum

Question 2 of 5

Which bacteria produce a toxin that causes botulism?

A. Clostridium tetani

B. Clostridium botulinum

C. Staphylococcus aureus

D. Bacillus anthracis

Expert Explanatory Rationale

Correct Answer: Clostridium botulinum

Question 3 of 5

Microscopic examination of vaginal discharge revealed pear-shaped flagellated protozoa with an undulating membrane. What is the causative agent?

A. Trichomonas vaginalis

B. Giardia lamblia

C. Trypanosoma brucei

D. Leishmania donovani

Expert Explanatory Rationale

Correct Answer: Trichomonas vaginalis

Question 4 of 5

Before a surgery the patient was prescribed a synthetic antiprotozoal drug for prevention of wound infection. The prescribed drug is highly effective against Helicobacter pylori. Name this drug:

A. Metronidazole

B. Chingamin (Chloroquine)

C. Doxycycline hydrochloride

D. Aciclovir

Expert Explanatory Rationale

Correct Answer: Metronidazole

Question 5 of 5

Microscopic examination of cerebrospinal fluid revealed Gram-negative diplococci. The patient presented with fever, headache, and neck stiffness. What is the most likely causative agent?

A. Neisseria meningitidis

B. Streptococcus pneumoniae

C. Haemophilus influenzae

D. Klebsiella pneumoniae

Expert Explanatory Rationale

Correct Answer: Neisseria meningitidis

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