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SDH (sorbitol dehydrogenase) is a liver-specific enzyme. Normal levels confirm there is no active liver cell damage.
Low SDH is not clinically significant.
No action needed.
Equine SDH: 0.8 U/L (Low)SDH (sorbitol dehydrogenase) is a liver-specific enzyme. Normal levels confirm there is no active liver cell damage.
No action needed.
Equine SDH: 4 U/LSDH is the most specific liver enzyme in horses. Elevation indicates active liver cell damage (liver cell damage). Unlike GGT, SDH is not elevated in cholestasis alone. Common causes include ragwort toxicity, acute hepatitis, liver abscesses, or ischemia. SDH has a short half-life (hours), so it reflects recent or ongoing injury.
Your veterinarian will investigate the underlying cause, which may include toxic plant exposure (especially ragwort), infection, or other liver diseases. Immediate removal from potential toxin sources is advised.
Equine SDH: 22 U/L (High)Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.