Biochemical and susceptibility tests useful for identification of nonfermenting gram-negative rods.
نویسندگان
چکیده
Six hundred nineteen strains of nonfermenting gram-negative rods were tested for alkaline phosphatase, benzyl-arginine arylamidase, pyrrolidonyl arylamidase, ethylene glycol acidification, and susceptibility to desferrioxamine and colistin. The results were highly discriminant. Therefore, the proposed tests may be helpful for the identification of this group of organisms.
منابع مشابه
Validation of Vitek 2 nonfermenting gram-negative cards and Vitek 2 version 4.02 software for identification and antimicrobial susceptibility testing of nonfermenting gram-negative rods from patients with cystic fibrosis.
Accurate identification and antimicrobial susceptibility testing (AST) of nonfermenters from cystic fibrosis patients are essential for appropriate antimicrobial treatment. This study examined the ability of the newly designed Vitek 2 nonfermenting gram-negative card (NGNC) (new gram-negative identification card; bioMérieux, Marcy-l'Etoile, France) to identify nonfermenting gram-negative rods f...
متن کاملChanging Antibiotic sensitivity pattern in Gram Negative Nonfermenting Isolates: a Study in a Tertiary care Hospital
Background: Nonfermenting gram negative bacteria are a group of heterogenous,aerobic,nonsporing bacteria.They are saprophytic in nature and found as commensals in man and other animals. Objectives: This study aims at isolation, identification and antibiotic susceptibility pattern of nonfermenting gram negative bacteria. Material and Methods: 70 isolates from various age groups of both male and ...
متن کاملEvaluation of the new VITEK 2 card for identification of clinically relevant gram-negative rods.
The VITEK 2 card for gram-negative bacteria (bioMérieux,Marcy-l'Etoile, France) has been redesigned to improve the identification of fermenting and nonfermenting bacilli. Forty-seven biochemical tests, including 19 enzymatic tests, are present in the new card and interpreted in a kinetic mode. Final identification results are available within 10 h. The database allows the identification of 159 ...
متن کاملCritical evaluation of the AutoMicrobic system gram-negative identification card for identification of glucose-nonfermenting gram-negative rods.
During a 6-month study we critically evaluated the accuracy of the AutoMicrobic system Gram-Negative Identification Card (Vitek Systems, Inc., Hazelwood, Mo.) in identifying glucose-nonfermenting gram-negative bacilli by testing 419 selected isolates in parallel with a conventional reference method. Of 356 isolates included in the AutoMicrobic system profile, a total of 307 (86.2%) were correct...
متن کاملPolyclonal bacteremia due to gram-negative rods.
The frequency of, risk factors for, and outcome of polyclonal gram-negative bacteremia are still unknown. We investigated them in a prospective cohort study of patients for whom a blood culture yielded >/=1 species of gram-negative aerobic rod. For each patient, pulsed field gel electrophoresis (PFGE) was performed on 4 colonies of each morphologic type. Episodes of bacteremia were considered p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of clinical microbiology
دوره 40 3 شماره
صفحات -
تاریخ انتشار 2002