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HelpTest Code MSTRB Culture, Streptococcus Group B screen
Infectious
Specimen Requirements
Specimen Type: High vaginal swab (HVS)
Container/Tube: eSwab, M40 transystem Amies agar transport media (Copan)(for non-NUH patients)
Volume: 1 swab
Collection Instructions: Collect specimen at 35 to 37 weeks’ gestation.
Swab the distal vagina (vaginal introitus).
Please refer to Test Catalogue -> Test Collection Information -> eSwab Training Slides
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | HVS |
|---|---|
| Ambient: | Submit sample to lab immediately |
| Refrigerate: | NA |
| Frozen: | Unacceptable |
Reference Interval
Streptococcus agalactiae (Group B) not isolated.
Days and Times Performed
Monday through Sunday, TAT 2-4 days
Methodology
Conventional Culture
Service Code
23085
Update
Last updated 10/09/2024
Unacceptable Condition
Frozen sample.
Testing Laboratory
National University Hospital
Clinical Microbiology, 67724343
Useful For
Prenatal screening of pregnant women at 35 -37 weeks of gestation is recommended to reduce Perinatal Group B Streptococcal disease.
Special Instruction
Do not share sample with other requests.