Blister Beetle Toxin (Cantharidin)

Preferred Sample

Plasma (2 mL minimum) collected in EDTA or heparin*; urine (10 mL minimum)




Days Tested

M | T | W | Th | F

Turnaround Time

3-5 days from day of test


Performed by GC/MS/MS.


Equine | Ruminants

Shipping Requirements

Ship overnight on cold packs. Urine should be submitted in a leakproof container.

*Centrifuge blood collected in anticoagulant (EDTA or heparin); remove plasma from cells and submit plasma in a separate tube.

Additional Instructions

Collect samples from acutely affected animals. Treated animals will have reduced to non-detectable amounts of toxin.