The performance of molecular tests using the Verigene Gram-Positive and Gram-Negative Blood Culture nucleic acid tests (BC-GP and BC-GN, resp.; Naosphere, Northbrook, IL, USA) was evaluated for the identification of microorganisms detected from blood cultures. Ninety-nine blood cultures containing Gram-positive bacteria and 150 containing Gram-negative bacteria were analyzed using the BC-GP and...

introduction campylobacter jejuni is a slender, motile, non-spore-forming, helical-shaped, gram-negative bacterium. it is one of the most common causes of human gastroenteritis in the world. the aim of this study was to present a patient with acute lymphocytic leukemia (all), who was infected with campylobacter jejuni. conclusions c. jejuni should be considered in the differential diagnosis as ...

Terminal subcultures from 5,354 negative BACTEC blood culture bottles did not significantly improve the detection of positive cultures. Only 15 of the 545 total isolates were recovered from the terminal subcultures. All 15 of these isolates were either considered contaminants or had been previously detected.

conclusions the results prove that the presented double pcr method could be used to detect positive cases from culture-negative blood samples. the chelex 100 method is simpler and safer than the use of qiagen kit for dna extraction. materials and methods a total of 100 patients with suspected brucellosis were included in this experimental study and given positive serological tests. diagnosis wa...

The effect of immediate incubation of blood cultures at 37°C on the turnaround time and the impact of Gram stain results on antimicrobial management were investigated. During a 6-month period, blood cultures collected at the emergency department outside laboratory operating hours were preincubated at 37°C until transportation to the laboratory. Upon the arrival of blood cultures at the laborato...

During a 24-month period, 5,625 blood culture specimens were collected at the Seattle Veterans Administration Medical Center in 20-ml volumes and divided into separate 10-ml aliquots. The two aliquots were processed as duplicate sets (set 1, set 2) by the BACTEC system (Johnston Laboratories, Inc., Towson, Md.). Specimens (5 ml) from each set were inoculated into aerobic (6B) and anaerobic (7C/...

To determine the need for blind subculturing of BACTEC (Johnston Laboratories, Cockeysville, Md.) blood culture media, we compared results of radiometric readings, visual inspection, and blind subculturing for nearly 7,500 blood specimens. Visual inspection and radiometric testing were performed on day 1 through 7, and blind subcultures were made on day 3. In the first phase of the study, 402 o...