Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1982 Oct;16(4):632-6.
doi: 10.1128/jcm.16.4.632-636.1982.

Primary culture media for routine urine processing

J C Fung, B Lucia, E Clark, M Berman, J Goldstein, R F D'Amato

Primary culture media for routine urine processing

J C Fung et al. J Clin Microbiol. 1982 Oct.

Abstract

It has been recommended that routine microbiological processing of urine specimens include quantitative plating onto blood agar medium along with a selective and differential agar such as MacConkey agar for gram-negative organisms. Few data have been published to justify this combination. To evaluate the validity of this recommendation 2,553 midstream, clean-voided urine samples were quantitatively plated onto blood agar, MacConkey agar, and colistin-nalidixic acid agar, which is a selective medium for gram-positive organisms. The amounts of growth on each of the three media were compared. Results indicated that the best medium combination was colistin-nalidixic acid agar and MacConkey agar. The use of colistin-nalidixic acid agar instead of blood agar increased the detection of significant growth of enterococci, lactobacilli, and Torulopsis glabrata.

PubMed Disclaimer

References

    1. Am J Clin Pathol. 1966 Apr;45(4):502-4 - PubMed
    1. J Urol. 1969 Nov;102(5):547-8 - PubMed
    1. Appl Microbiol. 1970 Jan;19(1):184-5 - PubMed
    1. J Clin Microbiol. 1976 Mar;3(3):246-50 - PubMed
    1. J Clin Microbiol. 1977 Feb;5(2):236-43 - PubMed