Bacterial Vaginosis (Sialidase) and Vaginal Yeast Culture

Casandra

Casandra Test Code LC78080Version 1 (DRAFT)

Performing Lab

Lab LabcorpLab Test ID 182709CPT Codes 87102, 87905

Bacterial Vaginosis (Sialidase) and Vaginal Yeast Culture

Also known as: BV (Sialidase) and Vaginal Yeast (Culture)

Clinical Use

Order Test

Use

BV (sialidase) activity: Enzyme activity test for use in the detection of vaginal fluid specimens for sialidase activity, an enzyme produced by bacteria associated with bacterial vaginitis, including Bacteroides spp, Prevotella spp, and Mobiluncus spp, and some G vaginalis. In a recent study, Bradshaw et al demonstrated the test to be 88% sensitive and 95% specific. Vaginal yeast culture: Detect yeast in vaginal fluid.

Special Instructions

It is important to avoid collecting specimens from the cervix as this might increase risk to obstetric patients, and cervical sialidase activity is usually higher than vaginal. Specimens should not be collected from patients who have used vaginal cream, ointment, douches, spermicides, vaginal lubricants, or feminine sprays within 72 hours of testing, as these factors may lead to false-negative results.

Limitations

If the sample is insufficient or collected from a patient undergoing antimicrobial therapy, the test may yield a false-negative result. Furthermore, inappropriate specimen collection or improper transport can lead to test rejection.

Test Details

Methodology

Culture-based

Biomarkers

2 components

BV, Sialidase ActivityVaginal Yeast Culture

LOINC Codes

Order Codes

41477-1

Result Codes

41477-1
18483-8

Result Turnaround Time

4-5 days

Specimen

Vaginal Swab

Volume

Swab

Minimum Volume

Not provided

Container

Copan double swab in Amies liquid medium

Collection Instructions

Using transport swabs provided, collect vaginal fluid sample by contacting the lower one-third of the vaginal wall, rotating for 10 to 20 seconds to absorb fluid. Immediately place the swabs into the transport tubes.