Measurement of trace minerals by inductively-coupled plasma/mass spectrometry. Targets include copper, cobalt, iron, manganese, molybdenum, selenium, and zinc. A $10.75 sample preparation fee will be added to tissue and feed specimens.
Specimen
One or more of the following*:
both 0.5 mL EDTA whole blood and 1 mL serum (both sample types are required)
For birds, 0.6 mL EDTA or heparinized whole blood is adequate.
*Serum selenium provides current day levels, while whole blood selenium indicates selenium status over a longer period of time. TVMDL can interpret both serum and whole blood selenium concentrations for cattle, horses, sheep, birds or white-tailed deer. For goats, TVMDL has reference values for serum or plasma only.
Blood, serum, and urine samples are tested on Mondays, Wednesdays, and Thursdays with a turnaround time of 7 days. Tissue and feed samples are tested on Mondays and Thursdays with a turnaround time of 10 days.
Visual examination of fresh or fixed retropharyngeal lymph node or head to identify suspect lesions. Special stains/culture are performed as deemed appropriate based on gross examination.
Specimen
Fresh or fixed retropharyngeal lymph nodes, or head
Gross examination, specific gravity, biochemical analysis with confirmatory testing, and microscopic analysis of urine sample to complete a full urinalysis.