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Mon – Fri 8:00 AM to 5:00 PM. 2025 Holiday Season Schedule.

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Prairie Diagnostic Services (PDS) offers a full range of diagnostic testing and submission resources to support the health and performance of horses. Our equine services assist veterinarians in diagnosing infectious disease, monitoring metabolic and nutritional health, and investigating reproductive or respiratory conditions. With clear submission guidelines, accurate laboratory analysis, and timely reporting, PDS provides the diagnostic insight needed to keep equine patients healthy and active.

EIA Testing

Establish and Maintain a Negative EIA Premise – PDS offers EIA testing with a 1-to-2 day turnaround time for results.  Click here to learn more.

EIA Digital reporting (GVL) is effective as of December 1, 2021. Please contact your CFIA District Office if you have any questions regarding the GVL transition.

Paper submissions will require CFIA approval. PDS will not process paper submissions without CFIA approval. Ensure to contact your CFIA District Office before submitting.

Equine Metabolic Testing at PDS

Refer to PDS Test and Services Guide for sample requirements and shipping information.

Submission Forms

Related Materials & Docs

Related Tests

BRYN DEV (remove later):

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TestLab SectionSample
ACTH, Endogenous
Endocrine
EDTA plasma
ACTH, Insulin, Leptin Panel (Cornell)
Referral
EDTA plasma - 1 mL Plus Serum - 1 mL
Aldosterone – Post (Michigan)
Referral
EDTA plasma or serum
Aldosterone – Pre (Michigan)
Referral
EDTA plasma or serum
Anti-Mullerian Hormone (IDEXX)
Referral
Serum
Antimicrobial Susceptibility Test (AST) – Equine
Bacteriology
Bacterial Culture
Antinuclear Antibody IFA – Non Canine (IDEXX)
Referral
Serum
Bacterial Culture and Susceptibility – Equine
Bacteriology
Swabs
Baermann (Larvae sedimentation)
Parasitology
Feces (fresh)
Bile Acid – Single
Clin Path
Serum or heparinized plasma
Biopsy – Gastrointestinal – >3 Tissues
Pathology
Full-thickness or endoscopic gastrointestinal biopsies
Biopsy – Gastrointestinal – Up to 3 Tissues
Pathology
Full-thickness or endoscopic gastrointestinal biopsies
Biopsy – Skin – Dermatohistopathology
Pathology
Skin - 6 mm punch or strip biopsies preferred. Skin or orifice lesions but not obvious masses or cysts.
Biopsy – Surgical – > 3 or a single mass > 2 cm dia.
Pathology
Incisional (punch or wedge) or excisional biopsy (excludes Dermatohistopathology and Gastrointestinal Biopsies). 4 or more tissues or if the base of any of the submitted tissues (single or combined) exceeds the 6 x 6 cm grid (see Introduction 'Special Information for Surgical/Dermatological Submission' for grid).
Biopsy – Surgical – Up to 3 Tissues
Pathology
Incisional (punch or wedge) or excisional biopsy (excludes Dermatohistopathology and Gastrointestinal Biopsies). Up to 3 tissues that if combined will fit into a 6 x 6 cm grid (see Introduction 'Special Information for Surgical/Dermatological Submission' for grid).
Blood Smear Evaluation – Avian/Reptile Only
Clin Path
2 unstained blood smears. Will be offered to clients if EDTA samples are compromised during transit, or sample is NSQ for analysis (if smears have been submitted).
Calcium – Ionized
Clin Path
Heparinized whole blood - minimum 1 mL. Serum is not acceptable.
CBC – Complete Blood Cell Count
Clin Path
EDTA whole blood - tube 2/3 full (minimum 1/3 full) + 2 unstained blood smears
CBC – Partial
Clin Path
EDTA whole blood - tube 2/3 full (minimum 1/3 full)
CBC – WBC & Differential
Clin Path
EDTA whole blood - tube 2/3 full (minimum 1/3 full) + 2 unstained blood smears

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Submission Protocols