The ALT, AST are more liver oriented. AST can mean muscle damage (you would have a CPK high too) and those values gets extremely high in this case
As for the ALKP, there are several isoenzymes tested by this one, and it can mean:
cholestasis which is bile retention from liver enlargement, obstructions of other causes. This causes if very severe an increase in bilirubin (bile pigment).
BUN and Creatinine will go up when significant damage to the kidney occur, or if the dog is very dehydrated.
All the enzymes values are not too significant. To be taken in account, those values need to be 2 to 3 times the high normal. As you can see those are not too high. the ALT can increase from a lot of different causes not only liver disease. If high (like the 412) with no symptoms, it is something i would follow up.
Now, if you have liver failure, you may have disorientation, not acting right. And your liver enzymes could be normal or not. Usually if severe enough, you have other changes in the blood work.
What is really of concern is also her drinking a lot, 1.011 of urine concentration is basically what we call isosthenuric, so not concentrated. Since your dog had microalbuminemia and low urine specific gravity and possibly high blood pressure, it might be why you got a GFR done.
Since I do not see your dog, I can not tell you what should be done next, but I can make some recommendations. I hope this can open a line of communication with your primary care veterinarian.
Since we have increase water intake (polydipsia), mild liver enzymes increase , abnormal behavior, let's see what the different causes we can come up too:
-Hyperadrenocorticsm: I know she might have been stressed at the ER, but 200 is pretty high, I would do this again at your primary care veterinarian. High blood pressure is present in this disease. Symptoms can be different from one dog to another. Drinking a lot is a classic symptom. There are tests to determine if dogs have this disease:
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-Kidney disease: well, does not seem like it, but would encourage to have a culture done and do another microalbumine test (you can see values much higher). Microalbuminuria can be caused by high blood pressure, gastrointestinal loss too.
-Liver failure: still worth doing some bile acids tests to test the liver function.
-Other causes for polyuria:
ADH (antidiuretic hormone) deficiency: idiopathic, traumatic, neoplastic, or congenital origin central diabetes insipidus
Primary polydipsia: behavioral problem, organic disease of the anterior hypothalamic thirst center of neoplastic, traumatic, and inflammatory origin, pyrexia, and pain.
Possibly an abdominal radiographs, an abdominal ultrasound might be necessary. A Modified Water Deprivation with Antidiuretic Hormone might be necessary. Sometimes if all else fails, a MRI and A CSF tap might be run.
Let me know if you have more questions, or need additional information.
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