Rectal swab is:

a. acceptable.
b. not acceptable.


B
Because indigenous anaerobes are often present in large numbers as normal flora on mucosal surfaces, even minimal contamination of a specimen can give misleading results. Specimens that are likely to be contaminated are unacceptable for anaerobic culture. A rectal swab would be highly contaminated with normal bowel flora.

Biology & Microbiology

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