Veterian Key

Tracheal Collapse Basic Information Definition • Tracheal collapse is a condition characterized by dorsoventral narrowing of the tracheal lumen associated with flaccidity of the dorsal membrane and loss of the…

Equine Infectious Anemia (EIA) Basic Information Definition EIA is a bloodborne, viral infection of horses first described in 1843 in France. EIA virus (EIAV) is a lentivirus of the family…

Alkaline Phosphatase (ALP) Basic Information Definition • ALP is an enzyme found attached to the membrane of many different cell types. Isoenzyme (isozymes): Multiple variants of an enzyme that arise…

Subsolar Abscess and Penetrating Wound to the Foot Basic Information Definition Infection of the subsolar tissues of the foot, primarily including abscessation but also may include penetrating foreign body, septic…

Mast Cell Tumors Basic Information Definition A tumor composed of a neoplastic population of mast cells Synonym(s) Mastocytoma, mastocytosis (indicates systemic involvement) Epidemiology Species, Age, Sex Ages of reported cases…

Blood Gas Analysis Basic Information Definition A method for evaluating blood pH, Pco2, Po2, bicarbonate (HCO3−), and calculated values such as base excess (BE) Synonym(s) Acid-base analysis Typical Normal Range…

Dermatophyte Culture Basic Information Definition Examination of tissue or exudates for presence of fungal organisms Typical Normal Range (US units; SI units) Reported as negative or as heavy, moderate, or…

Twin Pregnancy Suspected or Confirmed

Seizures, Known and Suspected Causes in Horses Younger Than 1 Year Differential Diagnosis

Anemia, Regenerative Basic Information Definition Anemia is decreased erythrocyte (red blood cell [RBC]) mass, as identified by decreases in hematocrit, hemoglobin, and RBC count. Regenerative anemias are those in which…