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FETAL FIBRONECTIN

Item Value
Approval req'd? No
Available Stat? Yes
Test code FFN
Performed by? Chemistry
Sendout? No
Price range $$$
In House Availability M - F, 800 - 2400
Sa, Su, 800 - 1500
Method Enzyme Immunoassay (Adeza TLi)
Patient Preparation Patient samples should not be tested if the patient has had sexual intercourse within 24 hours prior to specimen collection.
Container type Special container with holding medium for dacron swab (available from Laboratory). The collection tube and swab should be stored at room temperature.
Collection Instructions Specimen should be obtained prior to collection of culture specimens, digital cervical examination, or vaginal probe by ultrasound examination as manipulation of the cervix may cause the release of fetal fibronectin.

Care must be taken not to contaminate the dacron collection swab or cervico-vaginal secretions with lubricants, soaps, disinfectants, or creams.

Fetal fibronectin tests are not intended for use in women with moderate or gross vaginal bleeding, know placental abruption, or placental previa.

Once the specimen is collected, store the collection tube and sample at 4°C (refrigerated temperature); transport to the Laboratory within 24 hours of collection.
Sample type Vaginal fluid
Normal range Negative
Synonyms FFN;Fibronectin, Fetal
Stability 8 hrs at RT
72 hours at 4°C
3 months at -20°C
Causes for rejection Delivered to Laboratory > 24 hours after collection.
Turn around times 2 hours
Additional information Detection of fetal fibronectin in cervico-vaginal secretions is associated with preterm delivery in symptomatic pregnant women between 24 weeks and 34 weeks, 6 days gestation, and in asymptomatic pregnant women between 22 weeks and 30 weeks, 6 days gestation.

Specimen should be obtained prior to collection of culture specimens, digital cervical examination, or vaginal probe by ultrasound examination as manipulation of the cervix may cause the release of fetal fibronectin.

Fetal fibronectin tests are not intended for use in women with moderate or gross vaginal bleeding, know placental abruption, or placental previa.

Last Updated 7/24/2015 3:05:16 PM
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