Red capped containers contain boric acid to preserve the urine.. They should be used for all routine microbiology urine samples (M,C & S), especially if delays in transport are anticipated.
White capped sterile universal containers are free of additives. They should be used for all other microbiology investigations, including early morning samples for Mycobacterium Tuberculosis, pregnancy tests, antigen detection and virology.
Page Reviewed: 03/11/15 | Updated by: Kevin Roberts