All TVMDL locations will be closed on Monday, May 26 in observance of Memorial Day. Normal hours will resume on Tuesday, May 27. Please schedule sample shipments with these hours in mind. As a reminder, the College Station and Canyon labs offer a sample drop off area that is open 24/7/365.
Measurement of estrone sulfate by radioimmunoassay.
For pregnancy detection in horses, estrone sulfate is most reliable after 60-90 days of gestation. However, concentrations may decrease a few weeks before parturition.
Measurement of serum and urine creatinine, sodium, potassium, chloride, calcium, and phosphorus by automated analyzer to determine electrolyte fractional excretion.
Specimen
0.5 mL urine and one of the following: 0.5 mL serum or lithium heparin plasma