a modified Benedict's copper reduction test is used to detect reducing substances in newborn and infant urines. False-negative glycosuria may be seen with Vitamin C, tetracyclines
In our laboratory, selected strains of Gram-negative rods from urine samples are identified as Escherichia coli on the basis of smell and morphology on lactose agar. To investigate the accuracy of this routine practice, 211 consecutive strains were tested in the urea-indole tube of the Three-...
coli (EC) and other gram negative rods (GNR) were usually found in both MSU and C urines, whereas enterococci and Group B strep (GBS) were usually found in MSU only (Table). For EC, the colony count exponent in C vs. MSU agreed in 78% of specimens, C >MSU in 2% and C <MSU ...
11], theetsABCgenes, encoding a putative type 1 secretion system [4],ompTp, encoding a putative outer-membrane protease differing from theE. colichromosomalompTgene [12] andhlyF, encoding a hemolysin [13]. Finally, 35 ORFs have unknown functions and may represent new virulence genes....
Gram-negative rods (GNR) had overall resistance rates higher than 50% for penicillin and 40% for 3rd- and 4th-generation cephalosporins. Escherichia coli resistance to fosfomycin (3%) and nitrofurantoin (2%) remains low, and 33.30% of E. coli, 48% of Klebsiella sp...
Method 2 also improved the identification accuracy for Gram-negative rods (GNR) from 77.1% to 94.2% (P=.022). The modified Method 2 significantly improved the average MALDI score from 1.408卤0.153 to 2.166卤0.045 (P=.000) for GPC and slightly improved the score from 2.107卤0.061 to 2.164...
pneumophila antigen in urine.1 Since we published ourreview of diagnostic approaches to Legionnaires' disease(LD)1 a number of new urinary antigen assays have becomeavailable. LD is an acute pneumonia caused by Legionellaspp., which are non-spore-forming Gramnegativerods. L. pneumophila serogroup ...
There was a decrease in the numbers of clostridia, bacteroides and gram-negative cocci, while the numbers of gram-positive cocci and rods were not changed by the administration of meropenem. The intestinal flora returned to normal in all volunteers within two weeks after the termination of ...
by Gram-negative bacteria, e.g., Enterobacterales likeProteusspp. showing swarming behavior, isolation on CNA agar (bioMerieux, Nürtingen, Germany) was used to suppress Gram-negative bacterial growth. Suspected colonies were assessed with the diagnostic approaches as described in the “Analytical ...
(n= 517) of the urine cultures; 65.2% (n= 2501) of the cultures showed a non-significant bacterial growth (<104cfu/mL), i.e., negative urine culture. An overview of the described parameters and other evaluated variables can be found inTable 1. No relevant differences were found between...