Texas A&M Veterinary Medical Diagnostic Laboratory

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Starting April 29, the USDA requires lactating dairy cows to be tested for HPAI prior to movement.
View TVMDL’s guidelines to mitigate potential delays when submitting dairy samples for movement testing.

Cortisol – Dexamethasone Suppression Profile – Equine (ChL)

Measurement of cortisol before and after administration of dexamethasone in horses to aid in the diagnosis of PPID. Test performed by chemiluminescence.

NameCortisol – Dexamethasone Suppression Profile – Equine (ChL)
Code1554.W
SectionClinical Pathology
Species
Specimen

Two specimens (pre and post), each with 0.5 mL serum in separate tubes. 

Sampling Requirements

Recommended testing protocol:

  1. Collect pre-Dexamethasone blood sample.
  2. Administer Dexamethasone at 40 micrograms/kg IM (20 mg for a 500kg horse); note time.
  3. Collect one post blood sample between 15-19 hours after administration of Dexamethasone.
  4. Separate serum and place in new tubes, labeled appropriately as pre and post. 
  5. Avoid hemolysis.

Follow additional instructions for processing and shipping.

Collection Container

Remove from red cells and place sample in an additive free transport tube. 

Packing Instructions

Label all samples. Ship overnight on cold packs.

Special Instructions

None

Price$29.50
Schedule
Lab Schedule Turnaround time
College Station Monday, Tuesday, Wednesday, Thursday, Friday1 day