Rectal swab - Vaginal swab - Throat swab - Urethral swab
The rectal swab is a diagnostic test aimed at the collection of fecal material, to be analyzed in the laboratory for the possible isolation of the microorganisms responsible for intestinal diseases (for example the cholera bacterium, salmonella, shigella, campylobacter etc.). During pregnancy, the rectal swab is indicated for the research of the Streptococcus agalactiae (or group B streptococcus).
The examination uses a sterile swab, similar to a cotton swab, moistened with the transport medium. This contonated stick is inserted into the rectum, through the anus, to a depth of about 2-4 centimeters, then rubbed to make fecal material adhere to it. The swab is kept in the rectal ampoule for 30 seconds, continuing to move and rotate it against the walls of the intestine; after which it is extracted and immersed in the test tube containing the transport medium. Before storing it, make sure that the tip of the swab shows significant traces of fecal material.
If possible, stool collection is generally preferable to use of the rectal swab.
