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PALM BEACH, FLA. -- Anorectal sampling for group B streptococcus screening late in pregnancy is not necessary for accurate results, but the laboratory procedure recommended by the Centers for Disease Control and Prevention to detect colonization is.
Those conclusions emerged from two separate studies that were presented at the annual meeting of District V of the American College of Obstetricians and Gynecologists.
In one of the studies, perianal cultures proved as effective as anorectal screening in detecting group B streptococcus (GBS), reported Dr. Chinyere Orafu of Aultman Hospital in Canton, Ohio.
The trouble is that most labs still use a standard nonselective testing method that fails to detect up to 50% of GBS cases, Dr. Patrick Duff of the University of Florida, Gainesville, said in a separate presentation.
Dr. Duff challenged attendees not only to find out whether their labs use the less effective--and less expensive--protocol, but also to "force your lab" to use the ...
Source: HighBeam Research, GBS screening: perianal cultures prove effective. (Lab Tests at...