Question #33 explained
Which of the following organisms is methenamine active against?
NOTE: Methenamine is a urinary tract antiseptic. When the urine is acidic methenamine converts into formaldehyde, which exerts an antimicrobial effect against the majority of microorganisms. It can be more of a challenge to achieve acidic urine in patients colonized with Proteus or Pseudomonas, which can be urea-splitting and increase pH. Methenamine is only used for UTI prevention, not UTI treatment. Patients must retain urine in their bladder to allow methenamine to work, so it is not an option for people with chronic urinary catheters who do not retain urine in their bladder.
A. Klebsiella pneumoniae – TRUE, BUT WRONG ANSWER
B. Proteus mirabilis– TRUE, BUT WRONG ANSWER
C. E. coli – TRUE, BUT WRONG ANSWER
D. Staphylococcus saprophyticus – TRUE, BUT WRONG ANSWER
E. All listed answers are correct- CORRECT