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Regular Member

Date Joined Apr 2013
Total Posts : 87
   Posted 5/18/2013 11:09 PM (GMT -6)   
What is a pH impedence test and how is it conducted?  I have had the 24hour pH probe test but I am not sure about this one.  Had surgery for "jackhammer" esophagus on the 7th and they say I need to continue with the protonix for 30 days and they want to do the impedence test on Thursday.  What do ya think?

Elite Member

Date Joined Apr 2007
Total Posts : 32602
   Posted 5/20/2013 12:21 PM (GMT -6)   

pH-impedance testing is used to determine whether the patient is experiencing acid reflux or non-acid reflux.  The test results can lead to a new treatment plan or an adjustment in the current plan.

The impedance test is conducted over a 24 hour period.  During that time the patient wears a thin catheter which is passed through the nose and into the esophagus.  The monitor records and charts all reflux episodes which are then analyzed by the physician along with input from the patient as to when they experienced symptoms.  Together this information alerts the physician as to which type of reflux is present and how often it occurs.

Your Drs. appear to know what they are doing.  Good Luck.


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Veteran Member

Date Joined Aug 2012
Total Posts : 950
   Posted 5/20/2013 1:03 PM (GMT -6)   
can the non-acid reflux episodes be interpreted or read as bile reflux? I'm looking for a definitive way to determine bile reflux without a whole bunch of other tests. Have had several impedance tests and still think its 'bile'. The doc tells you that you have this many episodes of acid and this many non- acid and this is usually based on pH , so can I correctly assume that "non-acid" is bile. Not sure if i'm asking correctly but If they are mixed together (bile and acid) doesn't the test read based on pH and I've been told that bie is non-acid. Sorry for my confusing question . 🌷 thanks

Veteran Member

Date Joined Apr 2012
Total Posts : 707
   Posted 5/20/2013 2:13 PM (GMT -6)   
IMO, from what I understand non-acidic reflux is bile and or pepsin.

Veteran Member

Date Joined Mar 2012
Total Posts : 1110
   Posted 5/20/2013 3:11 PM (GMT -6)   
I really wish these doctors would come up with some better way to deal with pepsin. If you are refluxing acid, what makes them think you won't reflux the other stomach contents.
GERD Moderator; Diagnosed GERD, no other medical conditions (this one is enough) ; Gluten free since 2012; low dairy since 2012

Veteran Member

Date Joined May 2012
Total Posts : 541
   Posted 5/21/2013 10:32 PM (GMT -6)   
I'm not sure either, I asked my doctor and he said that it wasn't necessarily bile. During my ph study I did noticed I had strong stomach pains and that my ph meter spiked to about 9.0 numerous times. Don't know if that's bile, but I would assume anything coming from the stomach would be more acid than 9.0.

Veteran Member

Date Joined Apr 2012
Total Posts : 707
   Posted 5/22/2013 5:21 AM (GMT -6)   
I believe bile is alkaline, hope that helps.
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