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Lab results- What do these indicate?

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Together the results can mean a number of things and depends upon what your doctor was looking for or looking to rule out.


The low bicarbonate finding is useful to determine dehydration (from something like chronic diarrhea), diabetic ketoacidosis, metabolic acidosis, kidney dysfunction and/or kidney disease.


Taken with the elevated (high) BUN-Cr, something is inhibiting the kidneys - a decreased blood flow to/from the kidneys, which can be caused by things like dehydration, congestive heart failure, GI bleeding, injury to the kidneys, along with some other condition.


It's hard to say what it means without understanding what prompted the test.

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It would be more helpful to know the actual BUN and creatinine values separately...they are both indicators of kidney function but both can also be affected by hydration status and BUN can be influenced by other organs like the liver. Obviously, the ratio you reported is increased but I have no idea if it is increased because both values are increased or just one dramatically.

The low bicarb can go along with kidney issues or diarrhea....in a horse :). Aren't there any human docs out there willing to stick their necks out on this one? :D

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In general, an elevated BUN/creatinine ratio indicates a "prerenal" problem, meaning the kidneys themselves are not diseased but there is decreased blood flow to the kidney. This can be a result of many different things, like low blood volume, low blood pressure, renal artery stenosis (narrowing of the artery supplying the kidney) and others.


With kidney disease, you would see a *low* BUN/creatinine ratio.

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Thank you!

These are for my foster son. Labs drawn in May and never followed up on by previous foster family.:glare:

Was he sick at the time? Severe vomiting and diarrhea can cause it, as well as certain medications.


It definitely needs to be rechecked, but it's possible that things are back to normal now. Hope it turns out fine this time.

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