Toxin/substance	Panel components/ Notes	Sample needed	Laboratory
25-OH-D3	Vitamin D3 poisoning (not Dovonex)	Half a Kidney	DCPAH
Acetylcholinesterase	Chill	EDTA, heparinized serum or plasma; entire hemisphere of brain	WSU
Acid extracted drugs	Acetaminophen, barbiturates, ibuprofen, flunixin (see link for full list)	4 mL heparinized plasma, 10 mL heparinized whole blood, 50 mL urine	COR
Aflatoxin	Chill	250 g of feed	WSU
		500 g of feed	TVMDL
		20 g liver, 100 mL milk	ISU
		Contact lab	PUR
Aflatoxin B1		>100 g feed (NDSU); 500 g feed (UCD)	NDSU; UCD
Aflatoxin M1		400 mL milk	UCD
Aflatoxin quantitative (ELISA)		110 g of feed	COR
Aflatoxin rapid screen		> 15 g feed	COR
Aldicarb		20 grams of stomach contents and/or 10 grams of bait	TVMDL
Alkaloid screen	Anabasine, atropine, coniine, deltaline, nicotine, scopolamine, sparteine, taxus	50 g GI contents, 20 mL urine, 25 g plant	UCD
	Strychnine, brucine, caffeine, theobromine, theophylline, nicotine, atropine, cocaine, morphine, codeine, ephedrine, reserpine, quinine, and solanidine	Must contact lab before submission; 5 g liver, 10-20 ml heparinized whole blood, 50 ml urine, 100 g other materials	COR
Amanitin		2mL bile, 5mL urine, 25 g GI content, 10 g mushroom.	UCD
Ammonia		EDTA or heparinized serum or ocular fluid	WSU
		500 g frozen rumen content	TVMDL
Anabolic steroids	boldenone, testosterone, and stanozolol	50 ml urine, 10 ml heparinized whole blood, 4 ml plasma	COR
Anatoxin-a	Cyanobacterial toxin	50 g GI contents, 50 mL water	UCD
Anesthetic screen	acepromazine, barbiturates, ketamine, morphine, xylazine, tiletamine/zolazepam	50 ml urine, 10-20 ml heparinized whole blood, 5 g liver	COR
Anticoagulant screen	Warfarin, Bromadiolone, Brodifacoum, Diphacinone, Chlorophacinone, and Difethialone	2.0 mL EDTA blood, 2.0 mL serum, 10 g fresh liver, 10 g bait	TVMDL
	Brodifacoum, bromadiolone, chlorophacinone, coumachlor, difethialone, diphacinone, and warfarin.	20 g liver, 5 mL serum, 5 mL blood (RTT), 20 g bait.	UCD
	Brodifacoum, bromadiolone, chlorophacinone, coumachlor, coumafuryl, diphacinone, difethialone, pindone, valone, warfarin, difenacoum	20 g liver, bait or stomach contents; 5 mL blood (EDTA or heparin) or urine	WSU
	Brodifacoum, bromadiolone, chlorophacinone, dicoumarol, difethialone, diphacinone, pindone, valone and warfarin.	Liver, whole blood, other	DCPAH
	Brodifacoum, bromadiolone, chlorophacinone, diphacinone, pindone, warfarin	10 g liver, GI contents, 100 g bait (batched)	GOC
	Unspecified	Contact lab	PUR
Anticoagulant screen-liquid	Brodifacoum, bromadialone, chlorophacinone, dicoumarol, difethialone, difenacoum, diphacinone, flocoumafen, warfarin	10-20 ml whole blood; 50 ml urine	COR
Anticoagulant screen-solid		50g liver; 50g stomach contents; 200g feed
Arsenic	Chill	5 mL whole blood, urine, water, 2 g tissue or 100 g feed	COR
		Blood (EDTA or heparin), urine; GI contents, source, liver or kidney cortex	WSU
		Contact lab	PUR; CO
		water	DCPAH
		10 g liver or 10 g kidney, 500g rumen/stomach content, feed, or dirst/soil, 3 mL EDTA whole blood, 5 mL water; if chronic, 10 mL urine	TVMDL
Avicides	Avitrol and starlicide.	DCPAH, UCD- 20 g GI contents, 20 g source material; ISU- 50 g stomach contents, 50 g liver, 50 g bait; TVMDL-10 g stomach, crop, or rumen contents, 10 g bait	DCPAH; ISU; TVMDL; UCD
Basic extracted drugs	Acepromazine, Amphetamine, Apomorphine, Atropine, Benzocaine, Brompheniramine (see link for full list)	4 mL heparinized plasma, 10 mL heparinized whole blood, 50 mL urine	COR
Beetle identification		Blister beetle suspect	TVMDL
Β-lactam screen	Amoxicillin, ampicillin, ceftiofur, cephapirin, cloxacillin,	50 mL milk; Freeze and ship on dry ice.	UCD;
Blue green algae (Cyanobacteria) ID		Submit at least 500 ml. Keep sample cold.	KSU; NDSU
Bone ash		2.0 inch section of mid femur or humerus bone, minimum 10 g	TVMDL
Bone density		Contact lab	PUR
Bone screen	Unspecified	Contact lab	PUR
Bromethalin		10 g fat, 20 g brain, 20 g liver, 10 g bait	UCD;
Bromide		1-2 mL serum	COR; CO; DCPAH; TVMDL; UCD
Bronchodilators	Clenbuterol, Albuterol, Turbutaline	1) 10 mL heparinized whole blood; 2) 25 - 50 mL urine	COR
Cadmium		1) 2g tissue; 2) 100g feed	COR
		Blood (EDTA/heparin) or urine; Liver, kidney (cortex)	WSU
		5 g liver or kidney; 2 mL whole blood	CO
		10 g liver, 10 g kidney	TVMDL
Caffeine		10 mL stomach contents, urine, serum	WSU
Calcium		Contact lab	PUR
		50 g feed; 1 cm3 bone, 1 mL ocular fluid	CO
		Serum, plasma, ocular fluid/intact eye	WSU
Calculi identification		Clean, dry uroliths	CO; TVMDL
Cantharidin	Blister beetle toxin	1) 20 mL to 1 L urine; 2) 500 g stomach contents, vomitus; 3) 10-20 mL serum	COR; TVMDL
Carbamate insecticide screen	Cholinestrase should be run on blood or brain	100 g frozen GI contents, 100 g frozen source material,  100 g frozen feed, 50 g frozen liver, 10 mL blood.	UCD;
		Contact lab	GOC
	Chill/freeze	10 g Liver, kidney, GI contents, vomitus, lavage washings	WSU
Chloride		2 mL serum, 50 mL water	UCD
		500g feed or rumen content, 50 mL water	TVMDL
Chlorinated compounds	beta HCH, DDT, DDE, and PCB	Dried blood spot on filter paper card	DCPAH
	2,4-D, dicamba, bromoxynil, MCPA	10 mL serum or urine	WSU
Cholinesterase		Complete right or left half of brain,  0.5-1 mL EDTA whole blood.	UCD
		Brain, retina, whole blood	DCPAH
		Contact lab	PUR
		5 g brain, 1 mL serum or whole blood	CO
		Entire brain, 5cc EDTA whole blood (ruminants, Avian sp.), 2cc serum (monogastrics)	TVMDL
Chromium		Liver or kidney	WSU
Cobalt		1 mL blood (EDTA or heparin), liver, kidney	WSU
		5 g liver, 50 g feed, 2 mL serum/whole blood	CO
Copper		1 gram of tissue and/or 1 ml of serum	NDSU
		Contact lab	PUR
		5 g liver, 50 g feed, 2 mL serum/whole blood	CO
		500g feed, 10 g liver, 10 g kidney; 2 mL serum or 10 mL urine	TVMDL
Convulsant panel	strychnine, tremorgenic mycotoxins (roquefortine, penitrem A) and bromethalin	Bait, stomach contents	DCPAH
	strychnine, penitrem A, roquefortine	25 g GI contents, suspect material	GOC
Corticosteroid screen	Dexamethasone, Betamethasone, Methyl Prednisolone, Prednisolone, Prednisone, Flumethasone, Triamcinolone, and Triamcinolone Acetonide	20 mL heparin whole blood; 2) or transfer 5 mL heparin plasma into a red top tube; 3) 50 mL urine	COR
Cyanide	Freeze sample promptly; Cannot analyze in plasma or serum	Stomach content, whole blood, liver, muscle, plants, bait and/or source materials	DCPAH
		Contact lab: 1) 10 mL EDTA whole blood; 2) 10 mL heparinized whole blood; 3) 50g stomach contents; 4) 100g forage, silage, or other material	COR
		Contact lab	PUR
		50 g feed, 5 g lung, 5 mL whole blood	CO
		8-15 stalks of fresh forage, hay core sample, frozen rumen contents, tied off stomach (small animal)	TVMDL
Cyanide (distillation)		Frozen 25 g muscle, 25 g liver, 10 mL blood, 100 g feed, 500 mL water	UCD;
Cyanide (qualitative screen)		UCD-Frozen 50 g plant material, 50 g GI content; WSU- 100 g feed	UCD; WSU
Cylindrospermopsin	Cyanobacterial toxin	500 mL water.	UCD;
Diacetoxyscirpenol	Fusarium spp. toxin	Contact lab	PUR
Dicumarol		20 g feed (UCD); 50 -100 grams forage (NDSU)	NDSU; UCD;
Domoic acid		5 mL urine, 5 mL serum.	UCD;
Drugs of abuse screen	Amphetamine, cocaine, benzoylecgonine, norcocaine, ephedrine, lysergic acid diethylamide (LSD), methamphetamine, MDMA, nicotine, phentermine	10 mL urine, 10 mL serum, 10 g liver, 10 g kidney	UCD;
Ethylene glycol		bait, stomach contents, plasma, liver and urine	DCPAH
		Contact lab	PUR
		1) 10 mL heparin whole blood; 2) 10 mL EDTA whole blood;  3) urine; 4) food materials; 5) stomach contents	COR
		20 g stomach content, vomitus or bait	TVMDL
Ethylene glycol/ propylene glycol	Chill/freeze	5 mL serum, 10 mL urine, 50 g source material	WSU
Fat percent	Starvation	DCPAH, UCD- 50 g feed (UCD) or tissue (bone marrow); PUR- bone marrow fat	UCD; DCPAH; PUR
Fluoride		Tissues, Bone, Horn, Hoof	UCD;
		50 mL water	WSU
Fluphenazine	Anti-psychotic medication	10 mL heparine whole blood; or 2)   5 mL heparine plasma transferred to red top tube	COR
Fumonisin	Mycotoxin	200 g feed	UCD;
		100g feed, corn and corn feed, rice and rice containing feed	COR
		Contact lab	PUR
		500 g feed	TVMDL
Gallotannins (Oak)	Urine analyzed for pyrogallol. Plant/GI content analyzed for gallic acid.	50 g GI contents, 5 mL urine, 50 g plant material.	UCD;
GC/MS Screen	Library of 100,000+ chemical/toxins	20 mL fluid, 50 g tissue, 50 g feed, 50 g source material.	UCD
		Liver, stomach content	DCPAH
		25 g tissue/other; contact lab	GOC
Glomerular filtration rate (iohexol clearance)		Live dog or cat serum	DCPAH
Glutathione peroxidase	Must be run within 7d of collection	Blood (EDTA, heparin)	WSU
Glycerol		5 g tissue or 5 g feed.	UCD;
Glycol acids		5 g tissue or 5 g feed.	UCD
		1 mL serum or urine	TVMDL
Glycols	Ethylene glycol or propylene glycol	10 g GI contents, 10 mL urine, whole kidney,  10 mL separated serum, 50 g source material.	UCD;
Gossypol		200 g feed or 5 mL serum/plasma	UCD;
Grayanotoxins I and III	Indicators of exposure to: rhododendron, azalea, mountain laurel and Japanese pieris	50 g GI contents, 10 g plant or feed material or 50 g feces.	UCD;
Heavy metal screen	Arsenic, cadmium, copper, iron, mercury, manganese, molybdenum, lead, zinc	10 g liver, 10 g kidney, 50 g source material,  50 g feed, 50 g feces, 100 mL water	UCD;
	Arsenic, Lead, Cadmium, Mercury, Thallium	1) liver; 2) kidney; 3) powders, solids; 4) paint chips	COR
	arsenic, cadmium, copper, iron, manganese, molybdenum, lead, zinc	1 g liver and kidney	WSU
	arsenic, barium, cadmium, chromium, cobalt, copper, lead, manganese, molybdenum, nickel, selenium, vanadium, zinc	1 g liver, kidney	WSU
	Antimony, Arsenic, Beryllium, Boron, Cadmium, Cobalt, Chromium, Copper, Iron, Lead, Mercury, Magnesium, Manganese, Molybdenum, Nickel, Selenium, Tin, Thallium, Zinc	10 g liver, kidney (cortex preferred), GI contents, 100 g feed	GOC
	Unspecified	Feed, fluid, premix, soil/sludge, water, tissue	DCPAH
Heavy metal/trace mineral combo	Antimony, Aluminum, Arsenic, Cadmium, Chromium, Cobalt, Copper, Iron, Lead, Manganese, Molybdenum, Nickel, Selenium, Thallium, Vanadium, and Zinc	Submit at least 1 gram of tissue	NDSU
Herbicide screen	detects a variety of herbicides	30 g stomach/rumen contents, 10 g bait (source material), 40 g of forage or hay, 20 g liver, 10 g crop contents	TVMDL
Insecticide screen	detects a variety of insecticides	30 g stomach/rumen contents, 10 g bait (source material), 40 g of forage or hay, 20 g liver, 10 g crop contents	TVMDL
Ionophore screen	Monensin, salinomycin, narasin, and lasalocid	50 g feed, 50 g GI contents; WSU also 50 g of bile; TVMDL- 500g feed or rumen/stomach content	UCD; DCPAH; TVMDL; WSU
	Monensin, Lasalocide, Salinomycin	Feed	COR
	monensin, narasin, salinomycin	100 g feed; does not include lasalocid	GOC
Iron		Contact lab	PUR; WSU
		10 g liver, 500 g feed, 20 mL water	CO; TVMDL
Juglone	Black walnut toxicity	Contact lab	PUR
LCMS		20 mL fluid; 50 g  tissue; 50 g feed; 50 g  source material	UCD
Lead	Chill	1 mL whole (heparin/EDTA) blood, 10 g liver, 10 g kidney, 10 mL water, 25 g bone, 50 g source material.	COR; UCD; NDSU
		0.050-0.5 mL blood (EDTA/heparin); liver, kidney (cortex)	WSU
		Contact lab	PUR
		5 g liver or kidney	CO
		1 mL EDTA or Heparinized whole blood; 10 mL water; 10 g liver (monogastric), 10 g kidney (ruminant), or 10 g material (i.e. paint chips, feed, soil)	TVMDL
Macrolide endectocide screen	Ivermectin, moxidectin, selamectin and abamectin	Serum (4mL), brain, source material.	UCD
Magnesium		Contact lab	PUR
		5 g liver, 50 g feed, 1 mL ocular fluid	CO
		Serum, plasma, ocular fluid/whole eye, CSF	WSU
Manganese		1 mL blood (EDTA/heparin); liver, kidney	WSU
		2 mL plasma or serum	CO
Mass spectroscopy screen	Special request	Contact before submission; 1) 10 mL heparin whole blood; 2) 20 - 50 mL urine; 3) tissue; 4) plant materials;  5) stomach contents	COR
Melamine		Feed 50 g, Kidney 10 g, Urine 20mL, serum	UCD; DCPAH
		5 g feed	WSU
Mercury	Need whole blood. Do not use heparin separator tubes	Whole blood	DCPAH
		1 mL blood (EDTA/heparin); liver, kidney (cortex), GI contents	WSU
		5 g liver, kidney, muscle, stomach contents, 5 mL urine, 2 mL whole blood; No serum, plasma or liver biopsies will be accepted	CO
		1) 2g tissue; 2) 100g feed; 3) 2 mL heparin whole blood	COR;
Metaldehyde	Freeze	50 g stomach content, 50 g source material,  5 mL urine, 2 mL separated serum.	UCD;
		10 g stomach contents, source	TVMDL; WSU
Metal screen	Arsenic, barium, beryllium, cadmium, cobalt, chromium, copper, iron, mercury, manganese, molybdenum, nickel, lead, thallium, vanadium	10 g liver, 10 g kidney, 50 g source material,  50 g feed, 50 g feces, 100 mL water	UCD;
Methyl mercury		10 mL blood, 10 g liver, 10 g kidney, 10 g source material.	UCD;
Methylxanthines	Theobromine, theophylline and/or caffeine	Stomach contents, serum	PUR; DCPAH
Microcystins		50g GI contents, water 50mL.	UCD;
Minerals, toxic	Heavy metals	Feed, fluid, premix, soil/sludge, water, tissue	DCPAH
Mineral panel	Unspecified	COR: 1) 2g tissue; 2) 100g feed. Do not submit serum or plasma; NE- serum, water, feed, tissue (contact lab)	COR; NE
Molybdenum	Chill	1 mL plasma (EDTA/heparin); liver, kidney, GI contents	WSU
		5 g liver, 50 g feed, 2 mL serum/whole blood. No liver biopsies accepted.	CO
Monensin/ Rumensin		100 g feed	GOC
Mushroom ID		Mushroom; Don’t put in plastic bag! Ship wrapped in dry paper towel in paper bag	DCPAH; WSU
Mycotoxin LC/MS/MS Screen	Aflatoxin B1, B2, G1 and G2, T-2 toxin, Ochratoxin A and Sterigmatocystin at 20 ppb (0.02 ppm). Fumonisin B1, B2, HT-2 toxin, and DON (vomitoxin) at 200 ppb (0.2 ppm). Zearalenone at 50 ppb (0.05 ppm).	Submit at least 100 grams of sample (quart size bag of grain, gallon size bag of silage, forage, hay).	NDSU
	Aflatoxin B1, B2, G1, G2, Fumonisin B1, B2, B3, Nivalenol, Ochratoxin, T2, Vomitoxin, Zearalenone, Zearalenol	2 pounds of feed	ISU
Mycotoxin screen	Aflatrem,  Penitrem A, Ergotamine, Cyclopiazonic acid, Roquefortine	200 g feed; 50 g stomach/rumen contents	ISU
	Aflatoxins, zearalenone, vomitoxin, DAS and T-2 Unspecified Aflatoxin, deoxynivalenol, zearalenone Aflatoxin, vomitoxin, ochratoxin, zearalenone	Feed	DCPAH
		Contact lab	NE
		Contact lab	PUR
		500 g feed	WSU
	Aflatoxins (B1, B2, G1, G2), Ochratoxin A, Zearalenone, T-2 Toxin, DAS, DON and Sterigmatocystin	100 g feed	COR
Nitrates		1.0 cc ocular fluid or entire eye ball, 1 cc urine, 1 cc serum, or 20 mL water; 8-15 stalks of fresh forage, or 1 jar filled 3/4 filled with a core hay sample	CO; TVMDL
Organochlorine insecticide screen		Frozen 50 g liver, fat or brain, 100 g source material,  100 mL milk or GI content, 10 mL blood (not frozen)	UCD
		1) 10 - 20 mL heparin whole blood; 2) 50 mL urine; 3) 50g stomach or rumen contents; 4) 50g liver; 5) 200g other materials	COR
		10 g fat, liver, kidney, brain; 50 g GI contents or source	WSU
		contact	GOC
Organophosphorous insecticide screen		100 g GI content, 100 g source material or feed, 100 g feed, 50 g liver, 10 mL blood.	UCD
		10 g liver, kidney; 50 g GI contents or source	WSU
		1) 10 - 20 mL heparin whole blood; 2) 50 mL urine; 3) 50g stomach or rumen contents; 4) 50g liver; 5) 200g other materials	COR
		contact	GOC
Oxalate		1 plant, 50 g forage material, 50 g kidney.	UCD
Paraquat	Herbicide	100 g source/bait, 100 g lung, 50 g GI contents, 50 mL urine, 10 mL sera.	UCD
PCB screen		50 g liver, 50 g fat, 50 g brain, 100 g GI contents, 10 mL blood,  100 g source material, 100 mL milk	UCD
Penitrem/ roquefortine		50 g source material, 5 mL serum, 5 mL urine, 5 g GI contents	UCD;
Perchlorate		Frozen 40 mL milk, 40 mL water, 10 g feed.	UCD;
Pesticide screen	Type not specified	COR- 1) 20 heparin whole blood; 2) 50 mL urine; 3) 500 mL water; 50g liver; 5) stomach contents; 6) 100g feed; 7) plant material; NDSU- Minimum of 5 grams of stomach/rumen contents	COR; NDSU
Petroleum hydrocarbons		10 g liver, 50 g source material, 50 g feed.	UCD;
		500 g GI content, 100 mL water, 100 g source material	TVMDL
Phosphate		2 mL serum, 50 mL water.	UCD;
Phosphine	Toxic gas; test for aluminum, magnesium and zinc phosphide rodenticides	500 g frozen stomach content, bait	DCPAH; TVMDL
Phosphorous		Serum, plasma, liver, kidney	WSU
		50 g feed; 1 cm3 bone, 1 mL ocular fluid. No liver biopsies.	CO
		Contact lab	PUR
Phytoestrogen screen	Daidzein, Genistein, Formononetin, Biochanin A, Coumestrol	Minimum of 100 grams of forage/feed.	NDSU
Plant identification		Don’t put in plastic bag! Wrap in paper towel and put in paper bag. Intact plants from hay or pasture. Chill GI contents.	DCPAH; NDSU; TVMDL; UCD; WSU
Polychlorinated biphenyls (PCBs)		Fat and brain (necropsy) preferred but other tissue accepted, Serum (live)	DCPAH
Potassium		Liver or kidney	WSU
		1 mL urine or ocular fluid; 50 g feed	CO
Praziquantel		50 mL water	UCD;
Pyrethrin screen	Allethrin, bifenthrin, cyfluthrin, cypermethrin, fenvalerate, permethrin, pyrethrins	100 g GI contents, 100 g source material, 100 g feed, 50 g liver,  10 mL serum, 10 mL blood.	UCD;
Pyrethroid screen	Deltamethrin, Pyrethrum, Cis-permethrin, Permethrin, Cypermethrin, and α-cypermethrin	Fresh brain	TVMDL
Pyrrolizidine alkaloids	Groundsel, fiddleneck	GI contents, plant or source	UCD;
Ractopamine	Feed additive	Contact lab	CO
Reserpine	Equine sedation drug	10 mL heparin whole blood; transfer 5 mL heparin plasma to a red top tube	COR
Residues	Antimicrobial, growth promoters	Feed or milk	CO
Salt screen	Phosphorous, sulfur, magnesium, sodium, calcium, and potassium	10 g brain, eye (vitreous), 100 mL, water, 50 g source material,  1 mL CSF, 50 g feed	UCD;
		10 g liver, kidney, brain, 100 g feed	GOC
Saxitoxin	Shellfish toxin	500 mL water	UCD;
Selenium		5 mL whole blood, 10 g liver, 50 g GI contents, 50 g feed, 50 mL water	UCD; CO
		L mL blood (EDTA or heparin); 1 g liver or kidney; 1 g hair	WSU
		1) 2g tissue; 2) 100g feed; 3) 5 mL heparin whole blood; 4) 5 mL EDTA whole blood	COR
		Contact lab	PUR
		2 cc EDTA whole blood, 2 cc serum, 10 g liver	TVMDL
Selenium/ Vitamin E screen		Contact lab	PUR
Single element analysis	Any element of interest	Serum, other tissue/substance	DCPAH
Sodium		Serum, plasma, CSF, brain	CO; WSU
		Contact lab	PUR
		Brain hemisphere	TVMDL
Sodium fluoroacetate		50 g feed, 50 g GI content (UCD); > 10 g (NDSU)	UCD; NDSU
Strophanthidin	Adonis exposure	10 g GI content, 10 g plant material.	UCD;
Strychnine		20 g GI contents, 10 mL urine, 20 g bait, 3 mL separated serum, 25 g liver.	DCPAH; UCD;
		10 g stomach content/source; 2 mL serum; 10 mL urine; 25 g liver	WSU
		1) 10 - 20 mL heparin whole blood; 2) 10 - 20 mL urine; 3) 50g liver; 4) 50g stomach contents or vomitus	COR
		> 10-20 g stomach content	NDSU
		20 g GI content or vomitus, 10 g bait, 20 cc of urine	CO; TVMDL
Sugar alcohols		5 g tissue or 5 g feed	UCD;
Sulfate		2 mL serum, 50 mL water	UCD;
Sulfites	Only validated for chicken jerky	2 g	UCD;
Sulfur		1) 2g tissue; 2) 100g feed	COR
		Contact lab	PUR
T-2 toxin	Fusarium spp. toxin	Contact lab	PUR
Thallium		5 g liver, kidney or 5 mL urine	CO
Theobromine	Chill/freeze	20 mL stomach contents, urine	WSU
Toxic element panel	Antimony, Arsenic, Beryllium, Cadmium, Chromium, Lead, Mercury, Nickel, Thallium, and Vanadium	Whole blood, dried blood spot on filter paper card	DCPAH
Toxic element panel, biopsy	Copper and iron toxicity	Liver	DCPAH
Trichothecenedon		500 g feed	UCD;
Tissue macro/micro elemental analysis	arsenic, barium, cadmium, calcium, chromium, cobalt, copper, iron, lead, magnesium, manganese, molybdenum, phosphorus, potassium, sodium, sulfur, zinc	1 g Liver, kidney	WSU
Trace element screen	Copper, zinc, iron (unbound), magnesium, calcium, sodium, potassium, phosphorous	1-2 mL serum, 1-2 mL plasma (EDTA/heparin).	NDSU; UCD;
	calcium, copper, iron, magnesium, phosphorus, zinc - sodium on request	1 mL separated plasma	WSU
Urea	Chill/freeze	WSU- 50 g feed, source, GI contents; TVMDL- 500 g feed, 20 mL water	TVMDL; WSU
Vitamin A	Avoid preservatives such as Citrate or EDTA. No Gel Clot Vacutainer Tubes.	10 g liver, 5 mL separated serum/plasma, 25 g feed.	CO; UCD
		1 mL serum separated from clot.	COR
Vitamin E	Separate serum and remove from clot immediately. Protect from light and keep cool.	10 g liver, 5 mL separated serum/plasma, 10 g feed.	CO; TVMDL; UCD
		1 mL serum separated from clot. Do not use SST tubes	COR; WSU
		Contact lab	PUR
Vomitoxin (DON) panel	DON (vomitoxin); 15-ADON; 3-ADON; Nivalenol; Zearalenone	At least 100 grams of sample (quart size bag of grain,  gallon size bag of silage, forage, hay)	NDSU
Vomitoxin (Deoxynivalenol)		100 g feed	COR
		Contact lab	PUR
White Snakeroot (tremetol)		Contact lab	PUR
Zearalenone		100g feed (COR),  500 g feed (UCD)	UCD; COR
		Contact lab	PUR