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Lab Test Directory

Search IDEXX, Antech, and MSU reference-laboratory tests to find required samples and what each test is used for.

100 tests

ACTH Stimulation Test

Antech

Evaluates adrenal cortisol response to ACTH administration for Addison's and Cushing's workup.

Samples:Serum
Volume:1 mL serum total (0.5 mL baseline + 0.5 mL 1 h post-ACTH), red-top
Endocrinology · Reviewed 2026-10-18Official source

ACTH Stimulation Test

IDEXX

Assesses adrenal cortisol response to ACTH; diagnoses hypoadrenocorticism (Addison's) and hyperadrenocorticism (Cushing's).

Samples:Serum
Volume:1 mL serum total (0.5 mL baseline + 0.5 mL 1 h post-ACTH), red-top SST
Endocrinology · Reviewed 2026-10-18Official source

ACTH Stimulation Test

MSU

ACTH stimulation test evaluating adrenocortical reserve for diagnosis of hyperadrenocorticism (Cushing's) and hypoadrenocorticism (Addison's). Measures resting and post-ACTH cortisol.

Samples:Serum
Volume:~1.0 mL serum per draw (baseline + 1 h post-ACTH), plain clot/red-top tube
Endocrinology · Reviewed 2026-10-18Official source

Accuplex (Tick-Borne Disease Screen)

Antech

Screens for Anaplasma, Ehrlichia, Borrelia (Lyme), and heartworm exposure via multiplex assay.

Samples:SerumPlasmaWhole blood (EDTA)
Volume:0.5 mL serum, plasma, or EDTA whole blood
Infectious Disease · Reviewed 2026-10-18Official source

Aerobic Culture & Sensitivity

Antech

Identifies bacterial pathogens and their antibiotic susceptibilities from urine, tissue, or exudate.

Samples:UrineTissueExudate
Volume:Sterile swab in transport media, or 2 mL aspirate/fluid in sterile container
Microbiology · Reviewed 2026-08-30Official source

Aldosterone

IDEXX

Measures serum aldosterone; workup for hyperaldosteronism and adrenal pathology, especially in cats.

Samples:Serum
Volume:0.5 mL serum, red-top
Endocrinology · Reviewed 2026-10-18Official source

Aldosterone

Antech

Measures aldosterone; workup for hyperaldosteronism in cats.

Samples:Serum
Volume:0.5 mL serum, red-top
Endocrinology · Reviewed 2026-10-18Official source

Amylase & Lipase

Antech

Measures pancreatic amylase and lipase; pancreatitis evaluation.

Samples:Serum
Volume:0.5 mL serum, red-top
Chemistry — Pancreas · Reviewed 2026-10-18Official source

Anaplasma phagocytophilum Antibody

IDEXX

Detects Anaplasma antibodies; screens for anaplasmosis exposure.

Samples:Serum
Volume:0.5 mL serum, red-top
Infectious Disease · Reviewed 2026-10-18Official source

Anticoagulant Rodenticide Screen

MSU

Detects anticoagulant rodenticides (warfarin-type and long-acting) in blood, tissue, or food to confirm toxicosis and guide vitamin K1 therapy.

Samples:BloodTissueFood
Volume:2.0 mL whole blood or 10 g tissue/bait
Toxicology · Reviewed 2026-10-18Official source

Antinuclear Antibody (ANA)

MSU

Immunologic screen for autoantibodies to nuclear antigens, supporting diagnosis of autoimmune connective-tissue disease.

Samples:Serum
Volume:0.5 mL serum, red-top tube
Immunology · Reviewed 2026-10-18Official source

Basic Parathyroid Profile (iCa + PTH)

MSU

Basic parathyroid profile (catalog 20033). Measures ionized calcium and parathyroid hormone (PTH) together; required to determine whether hypercalcemia is parathyroid-dependent or parathyroid-independent.

Samples:Serum
Volume:~0.5 mL serum, plain clot/red-top tube
Endocrinology · Reviewed 2026-10-18Official source

Bile Acids (Pre- and Post-prandial)

Antech

Assesses liver function and portosystemic shunt, especially in small breed dogs.

Samples:Serum
Volume:1 mL serum total (0.5 mL fasted pre-prandial + 0.5 mL 2 h post-prandial), red-top
Hepatic · Reviewed 2026-09-20Official source

Blood Gas & Electrolytes

IDEXX

Measures acid-base balance and electrolyte status (Na, K, Cl, iCa) for critical-care and anesthetic monitoring.

Samples:Whole blood (heparinized syringe)
Volume:0.5 mL heparinized whole blood (arterial or venous), capillary syringe
Critical Care Chemistry · Reviewed 2026-10-18Official source

Bone Marrow Aspirate / Core Biopsy

MSU

Bone marrow evaluation for unexplained cytopenias, leukemia staging, and infiltrative marrow disease.

Samples:Bone marrow aspirate
Volume:Marrow aspirate in EDTA plus core biopsy in formalin
Hematology · Reviewed 2026-10-18Official source

Bone Marrow Fat Determination

MSU

Quantifies bone marrow fat percentage to evaluate bone-marrow suppression and hematopoietic reserve.

Samples:Bone marrow
Volume:Bone marrow core biopsy in formalin
Toxicology · Reviewed 2026-10-18Official source

Bromide (Therapeutic Drug Monitoring)

MSU

Serum bromide quantitation for therapeutic monitoring of dogs/cats on potassium bromide antiseizure therapy.

Samples:Serum
Volume:0.5 mL serum, red-top tube; note timing relative to dosing
Therapeutic Drug Monitoring · Reviewed 2026-10-18Official source

Canine Cancer Detection (Nu.Q)

Antech

Nucleosome quantification blood test aiding canine cancer screening and monitoring.

Samples:Serum
Volume:0.5 mL serum, red-top
Oncology · Reviewed 2026-10-18Official source

Canine Liver Biopsy Panel

MSU

Comprehensive liver workup combining histopathology, copper quantification, and IHC for chronic hepatitis, copper-associated hepatopathy, and cholangiohepatitis.

Samples:Tissue
Volume:Multiple liver core biopsies: one in formalin, one frozen for copper assay
Hepatopathology · Reviewed 2026-10-18Official source

Canine Mast Cell Tumor Prognostic Panel

MSU

Combines histology, proliferation markers (Ki-67), and c-Kit grading to stratify recurrence and metastatic risk for canine cutaneous mast cell tumors.

Samples:Tissue
Volume:Formalin-fixed tumor tissue (10:1 fixative:tissue)
Oncology · Reviewed 2026-10-18Official source

Canine Melanoma Diagnostic & Prognostic Panel

MSU

Molecular and immunohistochemical characterization of canine melanocytic tumors to assess malignant potential and prognosis.

Samples:Tissue
Volume:Formalin-fixed tumor tissue
Oncology · Reviewed 2026-10-18Official source

Canine Progesterone

IDEXX

Quantifies progesterone; optimal breeding timing and ovulation detection in bitches.

Samples:Serum
Volume:0.5 mL serum, red-top
Reproduction · Reviewed 2026-10-18Official source

Canine Thyroid Diagnostic Profile, Premium (fT4D)

MSU

Comprehensive canine thyroid diagnostic profile (catalog 20011). Measures total T4, total T3, free T4 by equilibrium dialysis (fT4D), thyroid stimulating hormone (TSH), thyroglobulin autoantibody (TgAA), and T3/T4 autoantibody index. Diagnoses hypothyroidism and lymphocytic thyroiditis; preferred when non-thyroidal illness or medications confound results.

Samples:Serum
Volume:~1.5 mL serum, plain clot/red-top tube (fT4D dialysis requires extra volume)
Endocrinology · Reviewed 2026-10-18Official source

Canine Thyroid Diagnostic Profile, Standard

MSU

Canine thyroid diagnostic profile (catalog 20010). Measures total T4, total T3, free T4 by direct serum (fT4), TSH, thyroglobulin autoantibody (TgAA), and T3/T4 autoantibody index. Diagnoses primary hypothyroidism and lymphocytic thyroiditis.

Samples:Serum
Volume:~1.0 mL serum, plain clot/red-top tube
Endocrinology · Reviewed 2026-10-18Official source

Canine Thyroid Therapeutic Monitoring Profile, Premium (fT4D)

MSU

Canine thyroid therapeutic monitoring profile (catalog 20013). Measures total T4, total T3, free T4 by equilibrium dialysis (fT4D), and TSH for monitoring thyroid hormone supplementation; autoantibody testing not included.

Samples:Serum
Volume:~1.0 mL serum, plain clot/red-top tube
Endocrinology · Reviewed 2026-10-18Official source

Cholinesterase (Blood)

MSU

Measures blood cholinesterase activity to diagnose organophosphate/carbamate insecticide exposure and toxicity.

Samples:Whole blood
Volume:1.0 mL whole blood, heparin (green-top) tube; ship chilled
Toxicology · Reviewed 2026-10-18Official source

Coagulation Panel (PT / aPTT)

MSU

Hemostasis testing to evaluate secondary hemostasis and screen for bleeding disorders, rodenticide toxicity, or coagulopathy.

Samples:Whole blood
Volume:1.8 mL citrated whole blood (3.2% sodium citrate), light blue-top tube
Hemostasis · Reviewed 2026-10-18Official source

Coagulation Panel (PT/aPTT)

IDEXX

Evaluates clotting function via prothrombin time and activated partial thromboplastin time; pre-surgical and bleeding-disorder workup.

Samples:Citrated plasma (sodium citrate 3.2%)
Volume:1.8 mL whole blood in 3.2% sodium citrate (blue-top, filled to line)
Hematology — Coagulation · Reviewed 2026-10-18Official source

Coagulation Profile (PT/aPTT/Fibrinogen)

Antech

Comprehensive clotting evaluation including prothrombin time, aPTT, and fibrinogen; pre-surgical screening and coagulopathy diagnosis.

Samples:Citrated plasma (sodium citrate 3.2%)
Volume:1.8 mL whole blood in 3.2% sodium citrate (blue-top, filled to line)
Hematology — Coagulation · Reviewed 2026-10-18Official source

Complete Blood Count (CBC)

IDEXX

Evaluates red and white blood cells and platelets to detect anemia, infection, inflammation, and clotting disorders.

Samples:Whole blood (EDTA)
Volume:0.5 mL whole blood in EDTA (lavender-top)
Hematology · Reviewed 2026-10-01Official source

Complete Blood Count (CBC)

MSU

Hematology profile (WBC, RBC, platelet counts and differential) to detect anemia, inflammation, infection, and hematologic disease.

Samples:Whole blood
Volume:1.0 mL EDTA whole blood, lavender-top tube
Hematology · Reviewed 2026-10-18Official source

Complete Blood Count (CBC) with Differential

Antech

Measures RBC, WBC, and platelet counts plus WBC differential; screens anemia, infection, and thrombocytopenia.

Samples:Whole blood (EDTA)
Volume:0.5 mL EDTA whole blood, lavender-top
Hematology · Reviewed 2026-10-18Official source

Complete Surgical Margin Evaluation

MSU

Comprehensive assessment of excision margins on mass removals to determine completeness of resection and guide re-excision decisions.

Samples:Tissue
Volume:Entire mass in 10% neutral buffered formalin with margins inked or mapped per protocol
Anatomic Pathology · Reviewed 2026-10-18Official source

Comprehensive Chemistry Panel

Antech

Multi-analyte chemistry covering liver, kidney, electrolytes, glucose, and protein; general health screen.

Samples:Serum
Volume:0.5 mL serum, red-top
Chemistry · Reviewed 2026-10-18Official source

Comprehensive Chemistry Panel

MSU

Serum biochemical profile evaluating major organ systems (liver, kidney, electrolytes, glucose, proteins) for systemic disease screening and monitoring.

Samples:Serum
Volume:1.0 mL serum, red-top or serum separator tube
Clinical Chemistry · Reviewed 2026-10-18Official source

Comprehensive Metabolic Panel

IDEXX

Assesses kidney function, liver enzymes, electrolytes, glucose, and proteins for organ and metabolic status.

Samples:Serum
Volume:0.5 mL serum, red-top SST
Chemistry · Reviewed 2026-10-01Official source

Creatine Kinase (CK)

Antech

Measures CK; marker of muscle damage or inflammation.

Samples:Serum
Volume:0.5 mL serum, red-top
Chemistry · Reviewed 2026-10-18Official source

Cryptococcal Antigen (Latex Agglutination)

IDEXX

Detects cryptococcal capsular antigen in serum or CSF; diagnoses cryptococcosis.

Samples:SerumCSF
Volume:0.5 mL serum or 0.5 mL CSF
Infectious Disease · Reviewed 2026-10-18Official source

Cytology (Fine Needle Aspirate Review)

MSU

Microscopic evaluation of aspirate or impression smears to characterize masses, effusions, and inflammatory lesions.

Samples:Direct smears
Volume:4–6 air-dried, unstained direct smears
Cytology · Reviewed 2026-10-18Official source

Ehrlichia canis Antibody

IDEXX

Detects Ehrlichia canis antibodies; screens for exposure or active tick-borne infection.

Samples:Serum
Volume:0.5 mL serum, red-top
Infectious Disease · Reviewed 2026-10-18Official source

Electrolyte Panel (Na/K/Cl/iCa)

Antech

Measures sodium, potassium, chloride, and ionized calcium for electrolyte and acid-base balance.

Samples:Serum
Volume:0.5 mL serum, red-top
Chemistry · Reviewed 2026-10-18Official source

Endogenous ACTH

MSU

Endogenous ACTH (catalog 20006). Measures pituitary adrenocorticotropic hormone to differentiate pituitary-dependent from adrenal-dependent hyperadrenocorticism after diagnosis.

Samples:Plasma (EDTA)
Volume:~1.0 mL EDTA plasma, special handling (chilled, centrifuge within 15 min, freeze plasma)
Endocrinology · Reviewed 2026-10-18Official source

Endogenous ACTH

Antech

Measures pituitary ACTH; differentiates pituitary-dependent from adrenal Cushing's disease.

Samples:Plasma (EDTA)
Volume:0.5 mL EDTA plasma (chilled), lavender-top
Endocrinology · Reviewed 2026-10-18Official source

Endogenous ACTH

IDEXX

Measures pituitary adrenocorticotropic hormone to differentiate pituitary-dependent from adrenal-dependent hyperadrenocorticism (Cushing's).

Samples:Plasma (EDTA)
Volume:0.5 mL EDTA plasma (chilled, spin within 15 min), lavender-top
Endocrinology · Reviewed 2026-10-18Official source

Ethylene Glycol Test

MSU

Quantitative serum/urine assay to confirm ethylene glycol (antifreeze) intoxication and guide antidotal therapy.

Samples:SerumUrine
Volume:1.0 mL serum or 1.0 mL urine, sterile container
Toxicology · Reviewed 2026-10-18Official source

Fecal Flotation (Centrifugal)

Antech

Concentrates feces and microscopically detects parasite eggs via flotation solution.

Samples:Feces
Volume:1–2 g fresh feces
Parasitology · Reviewed 2026-10-18Official source

Fecal Ova & Parasite Exam

IDEXX

Microscopic detection of intestinal parasite eggs and ova in feces.

Samples:Feces
Volume:1–2 g (≈1 tsp) fresh feces in clean container
Parasitology · Reviewed 2026-10-18Official source

Feline Heartworm Antibody

IDEXX

Detects feline heartworm antibody; screens for heartworm exposure in cats.

Samples:Serum
Volume:0.5 mL serum, red-top
Infectious Disease · Reviewed 2026-10-18Official source

Feline Immunodeficiency Virus (FIV) Antibody (SNAP)

IDEXX

Screens for FIV antibodies for point-of-care diagnosis of feline immunodeficiency virus infection.

Samples:SerumPlasmaWhole blood (EDTA)
Volume:3 drops serum, plasma, or EDTA whole blood
Virology · Reviewed 2026-10-18Official source

Feline Intestinal Lymphoma Panel

MSU

Integrates histopathology, IHC, and PARR to differentiate feline small-cell intestinal lymphoma from inflammatory bowel disease.

Samples:Tissue
Volume:Formalin-fixed intestinal biopsies (endoscopic or full-thickness)
Oncology · Reviewed 2026-10-18Official source

Feline Leukemia Virus (FeLV) Antigen (SNAP)

IDEXX

Screens for feline leukemia virus antigen; used for FeLV infection diagnosis and screening.

Samples:SerumPlasmaWhole blood (EDTA)
Volume:3 drops serum, plasma, or EDTA whole blood
Virology · Reviewed 2026-10-18Official source

Free T4 by Equilibrium Dialysis

Antech

Measures free (unbound) thyroxine; differentiates true hypothyroidism from euthyroid sick syndrome.

Samples:Serum
Volume:0.4 mL serum, red-top
Endocrinology · Reviewed 2026-10-18Official source

Free T4 by Equilibrium Dialysis

IDEXX

Measures free (unbound) thyroxine; distinguishes true hypothyroidism from non-thyroidal illness when total T4 is equivocal.

Samples:Serum
Volume:0.4 mL serum, red-top
Endocrinology · Reviewed 2026-10-18Official source

Fructosamine

Antech

Reflects average blood glucose over 2–3 weeks for monitoring diabetes mellitus therapy.

Samples:Serum
Volume:0.5 mL serum, red-top
Endocrinology · Reviewed 2026-09-20Official source

Fungal Culture (Dermatophyte)

IDEXX

Fungal culture on DTM for dermatophytes (ringworm) such as Microsporum canis.

Samples:HairSkin scraping
Volume:Plucked hair and scales from lesion margin
Microbiology · Reviewed 2026-10-18Official source

GCMS General Organic Compounds Screen

MSU

Broad gas chromatography–mass spectrometry screen for pesticides, drugs, and other organic compounds in serum, urine, or gastric contents for unknown-toxin workups.

Samples:SerumUrineGastric contents
Volume:2.0 mL serum or 5 mL urine; 10 g gastric contents
Toxicology · Reviewed 2026-10-18Official source

Glomerular Filtration Rate (Iohexol Clearance)

MSU

Estimates GFR from serial iohexol clearance to stage chronic kidney disease and detect early renal dysfunction.

Samples:Serum
Volume:0.5 mL serum at timed post-injection intervals; include dosing protocol
Nephrology · Reviewed 2026-10-18Official source

Heartworm Antigen Test

IDEXX

Detects adult heartworm antigen to diagnose heartworm infection in dogs and cats.

Samples:SerumPlasma
Volume:3 drops serum, plasma, or EDTA whole blood
Infectious Disease · Reviewed 2026-09-15Official source

High-Dose Dexamethasone Suppression

Antech

Differentiates pituitary-dependent from adrenal-dependent hyperadrenocorticism (Cushing's disease).

Samples:Serum
Volume:1.5 mL serum total (baseline + 4 h + 8 h post-dex), red-top
Endocrinology · Reviewed 2026-10-18Official source

High-Dose Dexamethasone Suppression Test

MSU

High-dose dexamethasone suppression test used to differentiate pituitary-dependent from adrenal-dependent hyperadrenocorticism after a positive screening test.

Samples:Serum
Volume:~1.0 mL serum per draw (baseline + 4 h + 8 h post-dex), plain clot/red-top tube
Endocrinology · Reviewed 2026-10-18Official source

Histopathology

Antech

Microscopic examination of tissue biopsies for definitive diagnosis of neoplasia and inflammatory disease.

Samples:Tissue in 10% neutral buffered formalin
Volume:Tissue in 10% neutral buffered formalin (1:10 tissue:formalin ratio)
Pathology · Reviewed 2026-10-18Official source

Immunohistochemistry (IHC)

MSU

Antigen-detection assay used to identify infectious organisms, classify tumor origin, and add prognostic markers to histologic sections.

Samples:Tissue
Volume:Formalin-fixed, paraffin-embedded tissue block
Anatomic Pathology · Reviewed 2026-10-18Official source

Insulin (paired with glucose)

Antech

Measures insulin paired with glucose for insulinoma diagnosis and insulin resistance evaluation.

Samples:Serum
Volume:0.5 mL serum (fasted), red-top
Endocrinology · Reviewed 2026-10-18Official source

Insulin (paired with glucose)

IDEXX

Measures serum insulin paired with glucose; diagnoses insulinoma and insulin resistance.

Samples:Serum
Volume:0.5 mL serum (fasted), red-top
Endocrinology · Reviewed 2026-10-18Official source

Ionized Calcium

MSU

Standalone ionized calcium (catalog 20026). Measures the physiologically active, hormonally regulated free calcium fraction; more accurate than total calcium for calcium disorders.

Samples:Serum
Volume:~0.5 mL serum (not EDTA/citrate, which chelate calcium)
Endocrinology · Reviewed 2026-10-18Official source

Ionized Calcium

Antech

Measures biologically active ionized calcium; more accurate than total calcium for calcium disorders.

Samples:Serum
Volume:0.5 mL serum, red-top
Chemistry · Reviewed 2026-10-18Official source

Ionophore Screen

MSU

Detects ionophore antibiotics (monensin, lasalocid) in feed/tissue/serum to investigate ionophore toxicosis in livestock and horses.

Samples:SerumTissueFeed
Volume:Serum 1.0 mL or 50 g feed/tissue
Toxicology · Reviewed 2026-10-18Official source

KeyScreen GI Parasite PCR

Antech

PCR-based detection of gastrointestinal parasites including Giardia and hookworms with high sensitivity.

Samples:Feces
Volume:1–2 g fresh feces in PCR transport tube
Parasitology · Reviewed 2026-10-18Official source

Lactate

Antech

Measures blood lactate; monitors perfusion, shock, and sepsis.

Samples:Whole blood (fluoride/oxalate)
Volume:0.5 mL whole blood (fluoride/oxalate tube)
Chemistry — Critical Care · Reviewed 2026-10-18Official source

Lead in Blood

MSU

Quantifies blood lead concentration to diagnose lead intoxication in animals with GI or neurologic signs.

Samples:Whole blood
Volume:1.0 mL whole blood, heparin (green-top) or EDTA tube
Toxicology · Reviewed 2026-10-18Official source

Lipid Panel (Cholesterol & Triglycerides)

Antech

Measures cholesterol and triglycerides; lipid-metabolism and pancreatitis workup.

Samples:Serum
Volume:0.5 mL serum (fasted 12 h), red-top
Chemistry — Lipid · Reviewed 2026-10-18Official source

Liver Panel (ALP/ALT/GGT)

Antech

Measures liver enzymes ALP, ALT, and GGT; evaluates hepatobiliary disease.

Samples:Serum
Volume:0.5 mL serum, red-top
Chemistry — Liver · Reviewed 2026-10-18Official source

Loved for Life by Antech SuperChem, CBC, UA, Accuplex, KeyScreen (Canine)

Antech

Loved for Life panel: SuperChem plus CBC, urinalysis, Accuplex vector-borne screen, and KeyScreen GI parasite PCR; Antech's comprehensive canine lifetime-health panel.

Samples:SerumWhole blood (EDTA)UrineFeces
Volume:1.0 mL serum + 1.0 mL EDTA whole blood + 6.0 mL urine + 0.3 g feces (Antech containers)
Canine Wellness · Reviewed 2026-10-18Official source

Low-Dose Dexamethasone Suppression

Antech

Aids diagnosis of canine hyperadrenocorticism (Cushing's syndrome) via cortisol response.

Samples:SerumEDTA plasma
Volume:1.5 mL serum total (baseline + 4 h + 8 h post-dex), red-top
Endocrinology · Reviewed 2026-09-20Official source

Low-Dose Dexamethasone Suppression Test

MSU

Low-dose dexamethasone suppression test (LDDST) evaluating pituitary-adrenal cortisol response to negative feedback for diagnosis of hyperadrenocorticism (Cushing's); higher sensitivity than specificity.

Samples:Serum
Volume:~1.0 mL serum per draw (baseline + 4 h + 8 h post-dex), plain clot/red-top tube
Endocrinology · Reviewed 2026-10-18Official source

Lyme Disease (Quant C6 Antibody)

IDEXX

Quantifies Borrelia burgdorferi C6 antibody; confirms exposure and assesses vaccine-independent antibody response.

Samples:Serum
Volume:0.5 mL serum, red-top
Infectious Disease · Reviewed 2026-10-18Official source

Magnesium

Antech

Measures serum magnesium for magnesium-deficiency or excess evaluation.

Samples:Serum
Volume:0.5 mL serum, red-top
Chemistry · Reviewed 2026-10-18Official source

Malignancy Profile (iCa + PTH + PTHrP)

MSU

Calcium malignancy profile (catalog 20030). Measures ionized calcium, PTH, and parathyroid hormone-related protein (PTHrP); supports humoral hypercalcemia of malignancy (e.g., lymphoma, anal sac adenocarcinoma).

Samples:SerumPlasma (EDTA)
Volume:~0.5 mL serum (iCa + PTH) + 0.5 mL EDTA plasma (PTHrP)
Endocrinology · Reviewed 2026-10-18Official source

Mycotoxin Screen

MSU

Detects common mycotoxins in feed/serum to investigate moldy-feed toxicosis and related outbreaks.

Samples:SerumFeed
Volume:Serum 1.0 mL or 100 g representative feed sample
Toxicology · Reviewed 2026-10-18Official source

Ocular Pathology Examination

MSU

Histologic and special-stain evaluation of enucleated globes and ocular tissue to diagnose intraocular neoplasia, glaucoma, and inflammatory disease.

Samples:Tissue
Volume:Intact globe in 10% neutral buffered formalin; do not incise
Anatomic Pathology · Reviewed 2026-10-18Official source

PARR (PCR for Antigen Receptor Rearrangements)

MSU

Molecular clonality assay distinguishing neoplastic lymphoid populations from reactive lymphoid hyperplasia across canine and feline species.

Samples:Tissue
Volume:Formalin-fixed tissue, fresh tissue, or EDTA whole blood
Molecular Diagnostics · Reviewed 2026-10-18Official source

Phenobarbital Level

IDEXX

Therapeutic drug monitoring for seizure control; ensures phenobarbital within therapeutic range.

Samples:Serum (pre-dose/trough)
Volume:0.5 mL serum (trough/pre-dose), red-top
Therapeutic Drug Monitoring · Reviewed 2026-10-18Official source

Phenobarbital Level

Antech

Therapeutic drug monitoring for phenobarbital seizure control; ensures level is within therapeutic range.

Samples:Serum
Volume:0.5 mL serum (trough/pre-dose), red-top
Therapeutic Drug Monitoring · Reviewed 2026-10-18Official source

Protein Electrophoresis

MSU

Separates serum/urine proteins to detect and characterize monoclonal gammopathies and gammopathies associated with immune or inflammatory disease.

Samples:Serum
Volume:1.0 mL serum, red-top tube
Clinical Chemistry · Reviewed 2026-10-18Official source

Resting (Baseline) Cortisol

MSU

Resting (baseline) serum cortisol (catalog 20017). Alone cannot diagnose or exclude hyperadrenocorticism because cortisol fluctuates; used as a component of dynamic testing or screening.

Samples:Serum
Volume:~1.0 mL serum, plain clot tube (no separator gel), separated serum
Endocrinology · Reviewed 2026-10-18Official source

Resting Cortisol

IDEXX

Measures serum cortisol as a baseline adrenal function screen.

Samples:Serum
Volume:0.5 mL serum, red-top
Endocrinology · Reviewed 2026-10-18Official source

Resting Cortisol

Antech

Baseline cortisol measurement for adrenal function screening.

Samples:Serum
Volume:0.5 mL serum, red-top
Endocrinology · Reviewed 2026-10-18Official source

SDMA (Symmetric Dimethylarginine)

IDEXX

Early biomarker of kidney function; detects acute and chronic kidney disease before creatinine rises.

Samples:Serum
Volume:0.5 mL serum, red-top SST
Nephrology · Reviewed 2026-10-18Official source

SNAP 4Dx Plus

IDEXX

In-house ELISA screening for 7 vector-borne pathogens in dogs: heartworm antigen (Dirofilaria immitis) and antibodies to Borrelia burgdorferi (Lyme, C6 ELISA), Ehrlichia canis/ewingii/chaffeensis, and Anaplasma phagocytophilum/platys.

Samples:SerumPlasmaWhole blood (EDTA or heparin)
Volume:3 drops (~150 µL) serum, plasma, or EDTA/heparin whole blood
Point-of-Care (SNAP) · Reviewed 2026-10-18Official source

SNAP Bile Acids

IDEXX

In-house ELISA measuring total bile acids for assessment of hepatic function and portosystemic shunts; run as fasted pre-prandial and 2 h post-prandial pair.

Samples:Serum
Volume:3 drops (~150 µL) serum per timepoint (fasted pre-prandial + 2 h post-prandial)
Point-of-Care (SNAP) · Reviewed 2026-10-18Official source

SNAP Cortisol

IDEXX

In-house ELISA measuring cortisol for adrenal function screening; used in conjunction with ACTH stimulation or dexamethasone suppression testing.

Samples:Serum
Volume:3 drops (~150 µL) serum
Point-of-Care (SNAP) · Reviewed 2026-10-18Official source

SNAP FIV/FeLV Combo

IDEXX

In-house ELISA detecting feline leukemia virus (FeLV) antigen and feline immunodeficiency virus (FIV) antibody in cats.

Samples:SerumPlasmaWhole blood (EDTA or heparin)
Volume:3 drops (~150 µL) serum, plasma, or EDTA/heparin whole blood
Point-of-Care (SNAP) · Reviewed 2026-10-18Official source

SNAP Feline Triple

IDEXX

In-house ELISA detecting feline leukemia virus (FeLV) antigen, feline immunodeficiency virus (FIV) antibody, and heartworm antigen in cats; comprehensive feline retroviral and heartworm screen.

Samples:SerumPlasmaWhole blood (EDTA or heparin)
Volume:3 drops (~150 µL) serum, plasma, or EDTA/heparin whole blood
Point-of-Care (SNAP) · Reviewed 2026-10-18Official source

SNAP Giardia

IDEXX

Rapid detection of Giardia lamblia antigen in feces for diagnosing giardiasis.

Samples:Feces
Volume:1–2 g fresh feces in clean container
Parasitology · Reviewed 2026-10-18Official source

SNAP Heartworm RT

IDEXX

In-house ELISA detecting adult heartworm antigen (Dirofilaria immitis) in dogs and cats; rapid pet-side heartworm screen.

Samples:SerumPlasmaWhole blood (EDTA or heparin)
Volume:3 drops (~150 µL) serum, plasma, or EDTA/heparin whole blood
Point-of-Care (SNAP) · Reviewed 2026-10-18Official source

SNAP Parvo

IDEXX

Rapid in-house detection of canine parvovirus antigen in feces.

Samples:Feces
Volume:1–2 g fresh feces or rectal swab
Infectious Disease · Reviewed 2026-09-15Official source

SNAP cPL (Canine Pancreatic Lipase)

IDEXX

In-house ELISA measuring canine pancreatic lipase (cPL) for the diagnosis of pancreatitis in dogs.

Samples:Serum
Volume:3 drops (~150 µL) serum
Point-of-Care (SNAP) · Reviewed 2026-10-18Official source

SNAP fPL (Feline Pancreatic Lipase)

IDEXX

In-house ELISA measuring feline pancreatic lipase (fPL) for the diagnosis of pancreatitis in cats.

Samples:Serum
Volume:3 drops (~150 µL) serum
Point-of-Care (SNAP) · Reviewed 2026-10-18Official source

SuperChem

Antech

Comprehensive serum chemistry profile measuring 27 analytes: ALT, albumin, A/G ratio, ALP, amylase, AST, BUN, BUN/creatinine ratio, calcium, chloride, cholesterol, creatinine, CPK, GGT, globulin, glucose, magnesium, phosphorus, potassium, PrecisionPSL lipase, sodium, Na/K ratio, triglycerides, SDMA, total bilirubin, and total protein. Screens liver, kidney, electrolyte, metabolic, pancreatic, and muscle function.

Samples:Serum
Volume:0.5 mL serum in red top, white top, or serum separator tube
Chemistry · Reviewed 2026-10-18Official source

SuperChem, CBC

Antech

SuperChem comprehensive chemistry profile plus a complete blood count (RBC, WBC, platelets, and WBC differential) for combined chemistry and hematology screening.

Samples:SerumWhole blood (EDTA)
Volume:0.5 mL serum (red/SST tube) + 1.0 mL whole blood in lavender-top (EDTA)
Chemistry · Reviewed 2026-10-18Official source

Reference only. Sample requirements and test availability can change. Always confirm current requirements with the official IDEXX, Antech, or MSU source before submitting a sample.