USMLE Forum Archives - USMLE Step 1 - Microbiology
Microbiology
mohhaider - 08-01-08 05:55
A spiral-shaped gram-negative rod is found in gastric washings from a 26 year-old stressed-out medical student with gastritis.Which of the following is most likely to be this organism?
(A) Campylobacter jejuni
(B) Helicobacter pylori
(C) Proteus mirabilis
(D) Providencia rettgeri
(E) Vibrio cholerae
mohhaider - 08-01-08 05:55
A spiral-shaped gram-negative rod is found in gastric washings from a 26 year-old stressed-out medical student with gastritis.Which of the following is most likely to be this organism?
(A) Campylobacter jejuni
(B) Helicobacter pylori
(C) Proteus mirabilis
(D) Providencia rettgeri
(E) Vibrio cholerae
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#2
Re: Microbiology
mohhaider - 08-01-08 06:18 Correct.
H. pylori is a spiral-shaped gram-negative motile rod that is associated with antral gastritis and duodenal (peptic) ulcer disease. It is oxidase-positive, catalase-positive, and a strong producer of urease. Antimicrobial therapy that clears H. pylori results in improvement of gastritis and duodenal ulcer disease .
#3
Re: Microbiology babbu5508 - 07-28-10 04:04 (B) Helicobacter pylori..the most common cause of peptic ulcers, gastritis, gastric carcinoma, MALToma...etc...very important...
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