Lab results question

[Pam M]

I've got a relative who lives overseas and who's got a sick horse. She wanted the opinion of a U.S. vet regarding her current labwork so I sent the results to mine but I thought I would post them here and see if there's any kind of consensus from those of you with knowledge of this kind of thing.

Alt - 10 norm: 5-50
Ast- 0 norm: 100-600
BUN- 55 norm: 10-25
Baso- .05 norm: .00-.003
Hct- 38%
Hgb- 11.5
RBC- 7.52
McHc- 30.4 norm: 31-38.6

The horse is having an endoscopy and test run on her kidney and liver. Any ideas/opinions?

[GeorgeGuns]

The ast and alt are liver enzymes, and usually when the liver has trouble they are greatly elevated. Having a reading of '0' makes me wonder about the lab.

Hgb is a little (smidge) low in relation to the Hct, so that makes me wonder what the Total Protien (tp) is.

BUN of 55 without any creatinine value is vague. Its high, but the horse could be dehydrated, or getting too much protien in its diet. I'd be concerned about this if the creatinine is also elevated - that usually points to metabolism of protien for energy, renal failure in horses is very rare, but not unheard of. Best management with these values is a straight hay diet, low protien feed - this means no oats - like a 10% feed. IF he does have soem renal failure, this is one time a mineral and salt block are a no-no - the kidneys may not clear certain electrolytes well, and further stress his kidneys, not to mention causeing other problems. BTDT, its a concern, but not impossible.