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GBS chromogenic medium
Intended Use
It is used for the screening GBS carried by pregnant women and the prevention of neonatal early-onset GBS diseases.
Advantages:
Screening GBS four in one: collection, transport, enrichment and chromogenic culture.
Simple and easy, display orange just is positive.The sensitivity and specificity is good.
Prevention of Perinatal Group BStreptococcal DiseaseRevised Guidelines from CDC, 2010One of the two preferred methods of CDC
Test Principle
GBS synthesize carotene through some ingredients, displaying orange color
Directions
1. Collect specimen
1.1 Tear out the outer package bag
1.2. Take out of swabs and collect specimen
1) Vaginal swab
Insert vaginal swab ower1/3 vagina
Rotate vaginal swab gently, and dip secretion on the mucosal wall
2) Anal swab
The anal swab is inserted through anal sphincter about 2-3 cm;
Rotate the anal swab gently a few times, and take out.
Unplug stopper of the tube,discard. Insert the swab into the test tube with the swab head submerged in the medium;
2. Transport
You should send to Laboratory in 24h, you can store it at room temperature.
3. Incubation and interpretation
Read the test tube for 1-2 times every day. Once Orange Apearence is positive
4. When a AST is needed, you should subculture to blood agar for isolation.
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