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Fetal Fibronectin
Test Code2589
Preferred Specimen
Swab from the posterior fornix of the vagina or the ectocervical region of the external cervical os. Do not to contaminate the swab or cervicovaginal secretions with lubricants, soaps disinfectants or creams.
Minimum Volume
Refrigerated.
Instructions
Specimens that are not tested within eight hours of collection must be stored, refrigerated, and tested within 72 hours of collection. Avoid extreme temperatures. Transport swab in Fetal Fibronectin Specimen Collection Kit. Specimens for fetal fibronectin testing should be collected prior to collection of culture specimens. Specimens should be obtained prior to digital cervical examination or vaginal probe, ultrasound examination as manipulation of the cervix may cause the release of fetal fibronectin. Testing should not be performed if the patient has had sexual intercourse within 24 hours prior to the sampling time because semen present may increase the possibility of a false positive result.
Transport Temperature
Refrigerated.
Specimen Stability
Ambient: 8 hours; Refrigerated: 3 days; Frozen: 2 weeks Only one freeze/thaw cycle acceptable.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens collected in or by any specimen device other than Fetal Fibronectin Specimen Collection Kit.
Methodology
Semi-Quantitative Immunoassay/Immunosorbent
Setup Schedule
Sun-Sat
Report Available
Within 24 hours
Limitations
Specimen source required.
Clinical Significance
Positive result when concentration is greater than or equal to 0.05 µg/mL
