using refractometer for urine ph

7817 Views 9 Replies 6 Participants Last post by flipgirl, May 15, 2009

robjpet

Discussion Starter · May 10, 2009

My Tuesday had struvite bladder stones removed and I am trying to keep an eye on her urine ph. I bought a refractometer and did the test but this meter does not specifically say ph. it has "S.P. ND U.G" do any of these things relate to the PH. The lowest numbers on the scale is 1.335 .....boy am I confused.
It should have come with more information. It only shows how to calibrate but does not give any other information.

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Dogstar

· #3 · May 10, 2009

I thought a refractometer measured the amount of sediment in the urine?

A quick google turned this up:
"Read the S. P. scale to give the total protein concentration of the sample of serum. • Read the U. G. scale to read the specific gravity of the urine sample." - so they wouldn't tell you the pH of the urine but how much protein and sediment was present (which is still very useful for stoneformers!)

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Dogstar

· #5 · May 10, 2009

robjpet said:
This refractometer is designed for veterinary and human use, so the readings in this are as follows.

R.I. 1.338 U.G. 1008
I can not see what the ND stands for....
I will take a urine sample to my vet on Monday and also take this refractometer with me and have them tell me what it all means.
Thanks

The one I was quoting from was a PDF file from a medical supplies catalogue that went along with a refractometer, so I think that much is accurate. Just no clue on the ND.

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