dr_singh246
internal medicine pgy2
Topics: 235
Posts: 561
|
During an infectious disease rotation, you are called to the intensive care unit to evaluate a febrile patient who has been hospitalized for some time. The patient is a 92-year-old nursing-home patient who has been hospitalized for three and a half weeks. You order the patient to be pan-cultured. The lab reports finding a gram-negative motile rod, oxidase-positive, aerobic organism that does not ferment lactose in the patient's sputum. Based on this information, you determine the patient is infected with which bacterium?
A. Corynebacterium diphtheriae
B. Klebsiella pneumoniae
C. Listeria monocytogenes
D. Proteus mirabilis
E. Pseudomonas aeruginosa
___________________
to love when it can be lost, to go on when progress seem futile and to believe in every fiber of your body. to live , have hope and faith and to never give in.... dr_singh246@yahoo.com
|
| anatomy
Forum Guru
Topics: 101
Posts: 423
|
E. Pseudomonas aeruginosa
|
| bactitech
Forum Elite
Topics: 25
Posts: 494
|
A. Corynebacterium diphtheriae - this is a gram positive rod - not likely since C. diphtheriae hasn't been isolated in the US for many years.
B. Klebsiella pneumoniae - this is a lactose fermenter, and oxidase negative
C. Listeria monocytogenes - this is a gram positive rod. More likely found in blood cultures and CSF.
D. Proteus mirabilis - this is a nonlactose fermenter, but oxidase negative
E. Pseudomonas aeruginosa - oxidase positive nonlactose fermenter - the only organism that fits the criteria listed.
___________________
Clinical Microbiology since 1974
|
|
| |
| | | |
