Screening cultures

Screening culture is a type a medical test that is done to find an infection. Screening cultures are often performed to find infections that do not have signs and symptoms.

Types of screening cultures

Perinatal Group B Streptococcal Disease comes from an intrauterine infection of the fetus from the spread of Group B Streptococcus from the vagina of a colonized woman who is typically asymptomatic. Medical studies show that prenatal screening cultures reduce the incidence of Perinatal Group B Streptococcal Disease. Studies of single institutions or health maintenance organizations show institutions with a culture-based screening policy have close to 90% of delivering women with documented GBS screening, and close to 90% of GBS-positive women received intrapartum antibiotics. ref|Hafner Cost-effectiveness analyses of the screening- and risk-based strategies have indicated that although the initial costs associated with specimen collection and processing make the screening strategy more expensive than the risk-based approach, the overall cost savings due to disease prevention do not differ importantly between strategies. ref|Pediatrics

Intensive care units of major hospitals routinely provide nasal, groin or axilla swabs for screening of Methicillin-resistant "Staphylococcus aureus" (MRSA)or Multi-resistant organisms (MRO).

References

*#Note|Hafner Hafner E, Sterniste W, Rosen A, et al. Group B streptococci during pregnancy: a comparison of two screening and treatment protocols. "Am J Obstet Gynecol" 1998; 179:677--81.
*#Note|Pediatrics [http://www.pediatrics.org/cgi/content/full/103/6/e78 Antimicrobial prevention of early-onset group B streptococcal sepsis: estimates of risk reduction based on a critical literature review] Benitz WE, Gould JB, Druzin ML. Pediatrics 1999;103:e78.

External links

* [http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5111a1.htm#tab2 Prevention of Perinatal Group B Streptococcal Disease Revised Guidelines from CDC] "Morbidity and Mortality Weekly Report" August 16, 2002. 51(RR11);1-22.