Bacterial Vaginosis (Sialidase), Trichomonas vaginalis, NAA, Vaginal Yeast Culture

Create a Free Account to View Prices


Turnaround Time: 3 - 5 days
CPT Code:

87905, 87102, 87661

Test Type: Vaginal fluid, multiple swab specimen



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

Trichomonas vaginalis by NAA: Diagnosis of T vaginalis infection

BV (sialidase) activity: Collecting specimens from the cervix should be avoided because (a) it might increase the risk to OB patients, and (b) cervical sialidase activity is usually higher than vaginal sialidase activity. Do not collect specimens from patients who have (a) used a vaginal cream or ointment product, (b) douched, or (c) used spermicides, vaginal lubricants, or feminine sprays within 72 hours of testing. If insufficient sample is collected or collected from a patient undergoing antimicrobial therapy, the test may yield a false-negative result.

Bradshaw CS, Morton AN, Garland SM, Horvath LB, Kuzevska I, Fairley CK. Evaluation of a point-of-care test, BVBlue, and clinical laboratory criteria for diagnosis of bacterial vaginosis. J Clin Microbiol. 2005 Mar; 43(3):1304-1308. PubMed 15750100

Garcia LS. Diagnostic Medical Parasitology. 4th ed. Washington, DC: ASM Press;2001.

Leber AL, Novak SM. Intestinal and urogenital amebae, flagellates, and ciliates. Manual of Clinical Microbiology. 7th ed. Washington, DC: ASM Press;1999.

Rein MF. In: Mandell GL, Bennett JE, Dolin R, eds. Trichomonas vaginalis,Principles and Practice of Infectious Diseases. 5th ed. Philadelphia, Pa: Churchill Livingston; 2000.

Sorvillo F, Smith L, Kerndt P, Ash L. Trichomonas vaginalis, HIV, and African-Americans. Emerg Infect Dis. 2001 Nov-Dec; 7(6):927-932. PubMed 11747718

Van Der Schee C, van Belkum A, Zwijers L, et al. Improved diagnosis of Trichomonas vaginalis infection by PCR using vaginal swabs and urine specimen compared to diagnosis by wet mount microscopy, culture, and fluorescent staining. J Clin Microbiol. 1999 Dec; 37(12):4127-4130. PubMed 10565943

Collection Details:

Collection Instructions:

Copan double swab in Aimes liquid medium and Aptima® unisex swab transport.

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. For the Aptima® swab, carefully break the swab shaft against the side of the tube. Tightly screw on the cap.

Maintain specimen at room temperature or refrigerate (2°C to 30°C).