Results 1–25 of 98 for "toxicology."

1. Toxicology Evaluation (Digital)

   Learn more about TVMDL’s Digital Toxicology Service then submit your specimens using the submission form for digital toxicology evaluation.

2. Iron – Feed or Tissue (ICP/MS)

   Measurement of iron in feed or tissue samples by inductively-coupled plasma/mass spectrometry.

3. Chloride (Colorimetric)

   Measurement of chloride by colorimetric analysis.

4. Drug Screen – Cannabinoids (LC/MS)

   Detection of tetrahydrocannabinol (THC), cannabidiol (CBD), their major metabolites, and a variety of synthetic cannabinoids by liquid chromatography/mass spectrometry. 

5. Glyphosate (GC/MS)

   Detection of glyphosate and aminomethylphosphonic acid (AMPA) by gas chromatography – mass spectrometry (GC/MS).

6. Strychnine (LC/MS)

   Qualitative detection of strychnine using liquid chromatography – tandem mass spectrometry (LC-MS/MS). 

7. Nitrates – Hay/Forage (Ion Selective)

   Measurement of nitrate in hay and fresh forage.

   Learn more about cyanide and nitrate in forages in the online Education Library.

8. Aflatoxin (Immunoaffinity-Fluorometry)

   Measurement of total aflatoxins (B1, B2, G1, G2) in feeds.

9. Cantharidin (LC/MS)

   Detection of cantharidin, the toxic chemical produced by blister beetles, by liquid chromatography/mass spectrometry.

10. Bromide (UV/Vis)

    Measurement of bromide ion. This test is useful for therapeutic drug monitoring on animals being treated with potassium or sodium bromide.

11. Dogs will eat anything, won’t they?

    ...ownfall. For more information about this case, contact Dr. Cat Barr, TVMDL toxicologist, at 1.888.646.5623. To learn more about TVMDL’s test offerings, visit tvmdl.tamu.edu or call one of our four laboratories. References Walter SL, 2002: Acute penitrem A and roquefortine poisoning in a dog. Can Vet J 45(5):372-374. Young KL, Villar D, Carson TL, et al., 2003: Tremorgenic mycotoxin intoxication with penitrem A and roquefortine in two dogs. J Am Ve...

12. Sodium (FAAS) [Referral]

    Measurement of sodium by flame atomic absorption spectroscopy (FAAS).

13. Propylene Glycol (GC/MS)

    Detection and quantification of propylene glycol by gas chromatography/mass spectrometry.

14. Ionophores (LC/MS)

    Detection and quantitation of a variety of ionophore compounds by liquid chromatography / mass spectrometry. 

    Targets include monensin, salinomycin, narasin and lasalocid.For feeds and feed additives, target compound and expected value are required before testing can begin. 

15. Pyrethroids (LC/MS)

    Detection of pyrethroids in brain tissue by liquid chromatography/mass spectrometry. 

    Targets include deltamethrin, pyrethrum, cispermethrin, permethrin, and cypermethrin.

16. Feed Nutritional Testing [Referral]

    Measurement of nutritional components in feed.

17. Mycotoxin (LC/MS) [Referral]

    Mycotoxin screen by liquid chromatography- tandem mass spectrometry (LC/MS/MS). This screen is for corn, grains, silage, forage, hay, DDGs, soybean meal, dry pet food, and TMR. Mycotoxins tested: Aflatoxin B1, B2, G1 and G2, T-2 toxin, Ochratoxin A, and Sterigmatocystin at 20 ppb (0.02 ppm). Fumonisin -B1, -B2, -B3, 15-ADON, 3-ADON, DAS and DON (vomitoxin) at 200 ppb (0.2 ppm). Zearalenone at 100 ppb (0.1 ppm).

18. Water Analysis – Routine [Referral]

    Measurement of ions (calcium, magnesium, sodium, potassium), sulfates, chloride, pH, conductivity, and total dissolved salts (TDS) in water.

19. Water Analysis – Routine & Heavy Metals [Referral]

    Measurement of ions (calcium, magnesium, sodium, potassium), sulfates, chloride, pH, conductivity, and total dissolved salts (TDS), as well as metals (zinc, iron, copper, manganese), and heavy metals (arsenic, barium, chromium, cadmium, fluoride, nickel lead) in water. 

20. Know your pasture! Lantana poisoning in a group of steers

    ...zation and edema. All of this pointed toward a secondary photosensitization. Fragments of Lantana camara were found in the rumen content, and the plant was later found in the pasture. To learn more about this case, contact Dr. Cat Barr, Veterinary Toxicologist at the College Station lab. For more information on TVMDL’s test catalog, visit tvmdl.tamu.edu. Photomicrograph depicting bile ductule proliferation. Swollen hepatocytes with pale cytoplasm....

21. Water Analysis – Routine & Metals [Referral]

    Measurement of ions (calcium, magnesium, sodium, potassium), sulfates, chloride, pH, conductivity, and total dissolved salts (TDS), and metals (zinc, iron, copper, manganese) in water.

22. Possible Wilted Maple Poisoning in Mare

    ...es of wilted maple poisoning in horses could occur wherever maple trees are damaged. Owners should be aware of such trees on their properties. To learn more about this case, contact Dr. Cat Barr, diagnostic toxicologist. For more information about TVMDL’s test offerings, visit tvmdl.tamu.edu or call 1.888.646.5623. Figure 1. Wilted maple leaf tree. Figure 2. Example of wilted maple leaves.  ...

23. Bromethalin (LC/MS)

    Detection of desmethylbromethalin, the toxic metabolite of bromethalin, by liquid chromatography/mass spectrometry.

24. Arsenic – Inorganic (Reinsch)

    Detection of arsenic salts by the qualitative Reinsch test. Targets include calcium arsenate, lead arsenate, and lead arsenate.

25. Review the range: Cattle and horse owners encouraged to be aware of potentially toxic plants

    ...ants that cause toxicity in cattle and horses? Cat Barr, PhD, DABT, is the toxicologist for the Texas A&M Veterinary Medical Diagnostic Laboratory(TVMDL). Each year, she works with animal owners from across Texas who need assistance identifying potentially toxic plants. Although Texas offers a variety of plant life, there are several common plants that grow across different regions of the state. For example, cocklebur seedlings (Xanthium strumariu...