Abstract
A commercially available single-bottle blood culture system was evaluated at Ben Taub General Hospital, a Harris County District Hospital. Blood cultures from 1010 patients were examined with the Lederle Diagnostics one-bottle blood culture medium-SPS, Columbia broth (E-Vac, Pfizer), and an in-house-prepared brain heart infusion broth with p-aminobenzoic acid (PABA) and 0.1% agar. Of the 1010 patients examined, blood cultures from 211 (20.8%) were positive, yielding a total of 23 different species of microorganisms. Comparison of the results during clinical evaluation, as well as those from simulated blood cultures, showed that the Lederle Diagnostics blood culture bottle was as effective as the in-house-prepared brain heart infusion and commercially available Columbia broths for isolation of aerobes as well as anaerobes. The techniques used in the evaluation and the advantages of a single-bottle culture system are discussed.
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