Test Code CVRNA Candida Vaginitis, Nucleic Acid Amplification RNA, Vaginal
Necessary Information
Specimen Required
Specimen Type: Vaginal
Supplies: Aptima Multitest Swab Collection Kit (T584)
Container/Tube: Aptima Multitest Swab
Specimen Volume: Swab
Collection Instructions:
1. Specimens must be collected using the Aptima Multitest Swab Collection Kit.
2. Insert swab (pink shaft) about 5 cm past introitus and rotate gently for 30 seconds.
3. Place swab into transport tube provided in collection kit. Snap off swab at score line so swab fits into closed tube.
4. Cap tube securely, and label tube with patient's entire name and collection date and time.
5. Maintain swab container at 2 to 30° C (refrigerate temperature is preferred) and transport within 30 days of collection. If longer storage is needed, freeze at -20 to -70° C up to 60 days.
Secondary ID
620888Useful For
Aiding in the diagnosis of Candida vaginitis
This test is not intended for use in medico-legal applications.
Method Name
Transcription Mediated Amplification
Reporting Name
Candida vaginitis, Amplified RNASpecimen Type
VaginalSpecimen Minimum Volume
See Specimen Required
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Vaginal | Refrigerated (preferred) | 30 days | APTIMA VIAL |
Frozen | 60 days | APTIMA VIAL | |
Ambient | 30 days | APTIMA VIAL |
Reject Due To
Incorrect swab Transport tubes containing more than one swab |
Reject |
Clinical Information
This test is intended to aid in the diagnosis of vulvovaginal candidiasis from vaginal samples collected from symptomatic individuals. Vaginitis is characterized by a spectrum of signs and symptoms, including vaginal/vulvar irritation, odor, discharge, and pruritus. Vaginitis may develop as a result of mechanical and/or chemical irritants (eg, feminine hygiene products, contraceptive materials), or due to a dysbiosis of the microbiota in the vaginal tract. Up to 90% of vaginitis cases are infectious due to Bacterial vaginosis (BV), vulvovaginal candidiasis (Candida vaginitis, CV) and/or trichomoniasis (Trichomonas vaginalis, TV). BV, CV and TV individually account for 22% to 50%, 17% to 39%, and 4% to 35% of vaginitis cases, respectively.
CV, commonly known as a yeast infection, is the second most frequent cause of vaginitis. CV is characterized by an overgrowth of Candida species in the vaginal tract and is associated with development of inflammation, abnormal vaginal discharge, vaginal soreness, pruritus, dyspareunia, and external dysuria. Up to 89% of CV cases are caused by C albicans, while non-albicans species may be responsible for 11%. C glabrata, which is responsible for the majority of non-albicans CV in the U.S., has decreased susceptibility to standard antifungal regiments for CV as compared to C albicans, which is why C glabrata is specifically reported by this assay.
Reference Values
Candida glabrata
Negative
Candida species group (C albicans, C tropicalis, C parapsilosis, C dubliniensis)
Negative
Interpretation
Candida species group (C albicans, C tropicalis, C parapsilosis, C dubliniensis):
Positive: Candida albicans, C tropicalis, C parapsilosis and/or C dubliniensis RNA detected. Individual organisms are not identified or reported by this assay. Results should be interpreted alongside clinical presentation. Up to 21% of asymptomatic patients may be positive by this assay.
Negative: No RNA detected from Candida albicans, C tropicalis, C parapsilosis or C dubliniensis. A negative result does not exclude infection.
Inconclusive: Repeat testing on a new sample is recommended if clinically indicated.
Candida glabrata:
Positive: Candida glabrata RNA detected. Results should be interpreted alongside clinical presentation. Up to 9% of asymptomatic patients may be positive for C glabrata this assay.
Negative: No RNA detected from Candida glabrata. A negative result does not exclude infection.
Inconclusive: Repeat testing on a new sample is recommended if clinically indicated.
Day(s) Performed
Monday through Sunday
Report Available
1 to 4 daysSpecimen Retention Time
7 daysPerforming Laboratory
Mayo Clinic Laboratories in RochesterTest Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
87481
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
CVRNA | Candida vaginitis, Amplified RNA | 92703-8 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
621517 | Candida species, Amplified RNA | 94422-3 |
621518 | Candida glabrata, Amplified RNA | 94421-5 |