What laboratory tests are available to confirm a pesticide poisoning?
The most specific standard test for organophosphate pesticide poisoning is the red blood cell (RBC) cholinesterase test. Plasma cholinesterase (also known as pseudocholinesterase) may also be useful. For pesticides other than organophosphates, there are few direct biological markers that can indicate poisoning. Urine and blood tests may be able to detect pesticide residues or metabolites to confirm acute exposures.