Xylitol is safe for humans, but is EXTREMELY toxic to dogs. Even small amounts of xylitol can result in hypoglycemia, seizures, liver failure, or even death in dogs. Symptoms of xylitol consumption appear within 15-30 minutes of consumption, and include vomiting, lethargy, incoordination, termors, seizures, and coma.
A Guide to the TPMT Lab Test. written by: angiem1981â¢edited by: Diana Cooperâ¢updated: 7/5/2011. The TPMT lab test, or the Thiopurine methyltransferase test, is a blood test used to check levels of the enzyme thiopurine before beginning certain therapies.This test can indicate whether or not thiopurine drugs will be an effective and safe treatment for the patient.slide 1 of 6. Guide to the TPMT Lab Test. written by: angiem1981â¢edited by: Diana Cooperâ¢updated: 7/5/2011. The TPMT lab test, or the Thiopurine methyltransferase test, is a blood test used to check levels of the enzyme thiopurine before beginning certain therapies.
1 The genetic test usually detects the most common variants associated with TPMT deficiency. 2  It is possible for a person to have a rare variant not detected by this test, who may subsequently experience serious side effects from treatment with a thiopurine drug.