Cross contamination of blood cultures associated with a multiple use venting device

Cross contamination of blood cultures associated with a multiple use venting device.

AIM To investigate cross contamination of blood cultures associated with multiple use venting devices, which are widely used in clinical microbiology laboratories to reduce labour costs. METHODS Systematic analysis of 13,880 blood culture results in a large teaching hospital where multiple use venting devices were employed. RESULTS Nine series of potential cross contamination were identifie...

Contamination of blood cultures.

Blood culture cross contamination associated with a radiometric analyzer.

During a 9-day period in August 1980 in a New Jersey hospital, three pairs of consecutively numbered blood cultures from different patients were identified as positive for the same organism (two pairs of Klebsiella pneumoniae and one pair of group A Streptococcus), for each pair, both cultures were positive in the same atmosphere, both organisms had the same sensitivities, and the second of eac...

Contamination of Blood Cultures 1055

Contamination of blood cultures is believed to occur mainly during the venepuncture procedure. Consequently, meticulous preparation of the venepuncture site is widely recommended. To determine whether the contamination rate is indeed affected by the quality of the antiseptic procedure at the venepuncture site, 181 paired cultures were collected from 176 patients during a 6-month period after ei...

Laboratory contamination of blood cultures.

A prospective study of the use of a laminar flow cabinet, an exhaust-ventilated safety hood, and the open bench for the microbiological examination of blood is described. Blood samples from 1600 patients were subcultured on the open bench, 2700 in a safety hood, and 2607 in a laminar flow cabinet. Use of the laminar flow cabinet produced a significantly greater level of contamination than the o...