Question

An elderly wheelchair bound man had a history of recurrent urinary tract infections. He presents with new onset of fever, chills, and confusion. Blood cultures were drawn. The organism grown was non- hemolytic, catalase negative, hydrolyzing an esculine. Gram stain showed gram positive cocci.

Resistance to with antibiotic should be examined prior the prescription?

A. Penicillin

B. Methicillin

C. Vancomycin

D. Tetracycline

Answer 1

A. Pencillin

Explanation: streptococcus is the enzyme here caused urinary tract infection. Because it is gram positive coagulase negative microbe. It is non hemolytic with cocci structure.

The major groups of antibiotics are used against the microbe is “pencillin” and “amoxicillin”.

Methicillin is used to treat infection against staphylococcus but they are less used due to bactieral species resistance mechanism.

Clostridium difficile Causing infection can be treated using vancomycin.

gonorrhea, or chlamydia are treated using tetracycline.

Hope it helps you. Thank you

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