Vaginal Swab For Culture and Sensitivity

Function

The Vaginal Culture and Sensitivity test identifies pathogenic microorganisms (bacteria, yeast, or protozoa) in the vaginal canal. It evaluates the balance of the vaginal microbiome, which is normally dominated by protective Lactobacillus species.

Why it is Ordered

This test is ordered when a patient presents with symptoms such as unusual discharge, itching, odor, or pelvic pain. It helps distinguish between various types of vaginitis, which require different treatments (e.g., antifungals for yeast vs. antibiotics for bacteria).

Associated Conditions

• Bacterial Vaginosis (BV): An overgrowth of anaerobic bacteria (e.g., Gardnerella vaginalis).
• Candidiasis (Yeast Infection): Overgrowth of Candida albicans.
• Trichomoniasis: A sexually transmitted parasitic infection.
• Group B Streptococcus (GBS): Screened during pregnancy to prevent transmission to the newborn.

Diagnostic Process

The sample is plated on specific media to see what grows. If a pathogen is found, it is tested against various medications. This is particularly important for recurrent infections where resistant strains of yeast or bacteria may be present.