ATI RN · Microbiology · microbiology an evolving science test bank
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Showing all 5 practice questions with expert explanatory rationales.
A child with fever and a sore throat had a Gram-stained smear revealing Gram-positive cocci in chains. The bacteria were beta-hemolytic. What is the likely causative agent?
Expert Explanatory Rationale
Correct Answer: Streptococcus pyogenes
Bacteria that have been identified as frequently responsible for nonsexually transmitted infections of the reproductive system include:
Expert Explanatory Rationale
Correct Answer: Escherichia coli, Gardnerella vaginalis, and Staphylococcus aureus
A 47-year-old male patient consulted a dentist about difficult mouth opening (lockjaw or trismus). The patient has a history of a stab wound of the lower extremity. What infection can be manifested by these symptoms?
Expert Explanatory Rationale
Correct Answer: Tetanus
The cleanup of various industrial wastes by living organisms is referred to as __________.
Expert Explanatory Rationale
Correct Answer: bioremediation
A patient being treated in the burns department has suppurative complication. The pus is of bluish- green color that is indicative of infection caused by Pseudomonas aeruginosa. What factor is typical for this causative agent?
Expert Explanatory Rationale
Correct Answer: Gram-negative stain
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