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Fetal fibronectin test


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  #1  
July 2nd, 2011, 11:53 AM
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With my episode I had on Wed. I had this test done. It was done to test for pre-term labor within the next 2 weeks. It's a relatively new test but they say it has a 99% accuracy rate of being correct. This is one of the main reasons I was discharged from the hospital since mine came back negative.

I believe we've had a couple ladies who had this test done already. I was just curious what ladies thought about this test? Do you think it's accurate?
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  #2  
July 2nd, 2011, 12:00 PM
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they don't do it at my clinic, and we are a mayo campus, if that came back neg or positive it wouldn't change how they would treat you.
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  #3  
July 2nd, 2011, 12:43 PM
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Well mine came back negative twice and no baby so far! So I'd say theyre pretty good!!!
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  #4  
July 2nd, 2011, 01:01 PM
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Quote:
Originally Posted by w292737 View Post
they don't do it at my clinic, and we are a mayo campus, if that came back neg or positive it wouldn't change how they would treat you.
For my hospital apparently that test was one of the determining factors along with my cervical check on how they treated me. I've just read mixed reviews about it.

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Originally Posted by sweetgirl51305 View Post
Well mine came back negative twice and no baby so far! So I'd say theyre pretty good!!!
Oh good to know! I kind of hope though I don't have to get anymore of them.
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  #5  
July 2nd, 2011, 01:08 PM
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Never even heard of this test to be honest. I'll have to mention it to my OB... not sure if it matters in my case with an induction.....
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  #6  
July 2nd, 2011, 01:37 PM
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I've never heard of it either, but it sounds interesting!
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  #7  
July 2nd, 2011, 01:38 PM
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How do they preform the test?
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  #8  
July 2nd, 2011, 01:56 PM
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Wikipedia had an interesting thing to say

Quote:
Fetal fibronectin "leaks" into the vagina if a preterm delivery is likely to occur and can be measured in a diagnostic test.[1] It is an excellent biological marker of premature (preterm) delivery (a delivery before 37 weeks of gestation).
When the fFN test is positive, it is an inconclusive result. A positive result can indicate that a woman will go into preterm labor soon, but she may not go into labor for weeks. When the fFN test is negative, the result is a better predictor. A negative result means that there is little possibility of preterm labour within the next 7 to 10 days, and the test can be repeated weekly for women who remain at high risk. A negative fetal fibronectin test gives a more than 95% likelihood of remaining undelivered for the next 2 weeks.[2] A systematic review of the medical literature found that fetal fibronectin is a good predictor of spontaneous preterm birth before cervical dilation.[3] The test may be run on patients between 22 and 35 weeks gestation.
The test is easily performed and is usually painless. A specimen is collected from the patient using a vaginal swab. The swab is placed in a transport tube and sent to a laboratory for testing. Most labs can easily produce a result in less than one hour.
A false positive fetal fibronectin result can occur if the test is performed after digital examination of the cervix or after having had intercourse. It is important that the swab be taken before a digital vaginal exam is performed.

I've never had it done, but I've never been at risk for pre term labor either.
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  #9  
July 2nd, 2011, 04:35 PM
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It's actually not anywhere near that reliable. I had 3 positive results in my first pregnancy over a 10 week period. They stopped doing them on me after that. With the next pregnancies the peri said thru wouldn't do them bc of low accuracy. I think it is more accurate for negative results than positive.
I'm glad yours was negative.
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  #10  
July 2nd, 2011, 04:45 PM
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I have had it in both of my pregnancies, and it was very accurate when it was a negative result. I had it done at 30 weeks with this pregnancy and it was negative. I also had it done at 26 weeks and it was neg. Still no babies.

I had it done with my DD SO Much, and it was always right.

I trust it. There is room for error with most things, but I do trust it as much as I can trust a medical test.

ETA: Positive tests aren't accurate at all. Only the negative test is what they say is accurate
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  #11  
July 2nd, 2011, 05:44 PM
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I just had my most recent one Friday, its just a swab, like they do when you get a pap. And like the others said, a negative result is much more reliable. Positive means theres a small percentage of labor within 2 weeks I guess.
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  #12  
July 2nd, 2011, 11:08 PM
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Yeah its really just negative or bust But I think the negative is VERY accurate! (nope didn't have it done just chiming in! LOL)
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  #13  
July 3rd, 2011, 12:24 AM
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I think it's pretty accurate. I had one done like 2 weeks ago when i had a uti and no baby yet
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  #14  
July 3rd, 2011, 01:28 PM
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Quote:
Originally Posted by MommaSunshine View Post
I just had my most recent one Friday, its just a swab, like they do when you get a pap. And like the others said, a negative result is much more reliable. Positive means theres a small percentage of labor within 2 weeks I guess.
Yep this is how it's done. I think though it hurts a bit more than a pap smear. I was super uncomfortable when they were doing it.
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  #15  
July 4th, 2011, 08:34 PM
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Quote:
Originally Posted by jdt View Post
Yep this is how it's done. I think though it hurts a bit more than a pap smear. I was super uncomfortable when they were doing it.
I think that's because your cervix is more sensitive during pregnancy.

I had it done with DS when I was in PTL. It was positive - he was born just about 2.5 weeks later, but probably would have been sooner had they not treated me for the PTL.

I've had it done twice this pregnancy and both times it's been negative. I'm hoping it stays accurate.
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  #16  
July 5th, 2011, 12:59 AM
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I've heard of it, but have never had one.
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  #17  
July 5th, 2011, 02:42 AM
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heard about it, but never had one.

i think it sounds like a great diagnostic tool for those very early on who may need intervention.
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