https://www.vetsurgeon.org/f/clinical-questions/15685/more-rat-questions Hi all. I have a client with 2 rats with urinary tract problems. Both are just over 2 years old and are entire males. The first little guy presented with hip arthritis and hind limb ataxia. I requested a urine sample prior to starting NSAIDS. He haden-USTelligent Community 10https://www.vetsurgeon.org/thread/92027?ContentTypeID=1Sat, 29 Jun 2013 22:11:37 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:7cf2face-d149-460a-905d-b99a019fa2aamariette asselbergs<p>My comment (tuppence really) would be: for rat 1 a SG of 1.004 is too low for CRF. &nbsp;You would expect 1.012 or thereabouts. &nbsp;This looks more like diabetes insipidus or psychogenic drinking?</p> <p>For rat 2, year long hematuria but otherwise bright and happy I would strongly suspect a constantly irritating bladderstone. &nbsp;Can you scan or do an x ray?</p> <p>Mariette</p><div style="clear:both;"></div>