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Veterinary Point-of-Care Testing: Benefits and Limits
Veterinary point-of-care testing speeds up decisions, but not every POC test earns your trust.
A ten-year-old Lab walks in vomiting, hunched, painful on abdominal palpation. You run a SNAP cPL, it snaps abnormally, and pancreatitis goes on the chart. Fluids, analgesia, anti-emetics. Forty-eight hours later the dog is no better and radiographs show a linear foreign body.
Nothing malfunctioned. The test did exactly what it was validated to do, which is flag elevated canine pancreatic lipase. The problem is that lipase climbs in gastroenteritis, foreign bodies, liver disease, hyperadrenocorticism, and renal dysfunction too.
Summary: veterinary point-of-care testing is one of the biggest workflow gains general practice has seen in twenty years, and it is also the diagnostic category with the least regulatory oversight. There is no government body auditing in-clinic lab quality in veterinary medicine, so the burden of quality control sits with you.
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The tests that hold up (blood gas, lactate, in-house CBC and chemistry, heartworm antigen, Witness Lepto) hold up well. The ones that do not (in-house cortisol, qualitative cPL used alone, proBNP as a screening test) fail in ways that are easy to miss because the result still prints cleanly.
What Counts as Point-of-Care Testing in Veterinary Practice?
Point-of-care testing means any lab test run near the patient instead of shipped to a reference lab. In a companion animal clinic that covers benchtop chemistry and hematology analyzers, lateral-flow SNAP-style immunoassays, handheld lactate and glucose meters, blood gas analyzers such as i-STAT and epoc, coagulation devices, and increasingly isothermal molecular platforms that return pathogen results in minutes.
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The category is growing fast. The U.S. veterinary point-of-care diagnostics market was valued at roughly $0.97 billion in 2024 and is forecast to reach about $2.09 billion by 2032, a compound annual growth rate near 10 percent (SNS Insider, 2025). Molecular POC is the fastest-moving segment.
Which POC Tests Actually Hold Up?
Here is what the peer-reviewed data says about the tests you probably already own.
| Test | Reported performance | What it actually tells you | Practical caveat |
| In-house CBC and chemistry | Validated systems with routine QC | Reliable trending and screening | Only as good as your maintenance and calibration log |
| NT-proBNP (serum) | 85.5% sensitivity, 81.3% specificity in 115 dogs in respiratory distress (Oyama et al., JAVMA 2009) | Helps separate CHF from primary respiratory disease | A negative in a healthy-looking cat does not rule out cardiac disease (Lu et al., JVIM 2021, 217 cats) |
| SNAP cPL (qualitative) | 82% sensitivity, 59% specificity in acute abdomen dogs (Haworth et al., JVECC 2014) | A negative makes pancreatitis less likely | False positives are common enough that it cannot stand alone |
| Spec cPL >400 µg/L | 93% sensitivity, 78% specificity | Quantitative, with a defined 200 to 400 grey zone | Still not a standalone diagnosis of acute pancreatitis |
| Witness Lepto (IgM) | 98% sensitivity, 93.5% specificity vs MAT (Kodjo et al., 2016) | Distinguishes vaccine from wild serovars | ACVIM 2023 still recommends MAT confirmation; performance varies by regional serovar |
| SNAP Lepto | Cannot distinguish vaccinal from wild-type antibody | Useful only in confirmed unvaccinated dogs | Near-useless in regions that vaccinate routinely |
| In-house cortisol | Not recommended by ESVE Project ALIVE | Risk of both false positives and false negatives | ALIVE advises cortisol assays be run by reference labs |
| POC lactate | Non-survivors 3.4 vs 2.0 mmol/L on admission; AUC 0.724 for in-hospital mortality (Auburn pyothorax cohort, 2025) | Triage and prognostic trending | Single values mislead; serial clearance is the useful metric |
The pattern is consistent. POC tests are strongest when used as a rule-out or a trend, and weakest when treated as a rule-in diagnosis.
Where Does Point-of-Care Testing Genuinely Change Outcomes?
Four situations where in-house testing earns its cost outright:
- Emergency triage. Lactate, blood gas, PCV/TS and glucose within minutes of presentation change fluid and pressor decisions before a reference lab has even received the courier.
- Same-day pre-surgical bloodwork. Anesthetic protocol adjustments happen before induction, not after.
- Geographic isolation. Rural and remote practices where courier delays or weather make send-out testing unworkable.
- Antimicrobial stewardship. Rapid pathogen confirmation lets you narrow or withhold antibiotics instead of empirically covering.
What Are the Real Limitations of POC Tests?
The ASVCP quality assurance guidelines (Flatland et al., Veterinary Clinical Pathology, 2013) remain the reference standard, and they are blunt about it: without operator training, written SOPs, controls, and periodic comparison against an outside lab, in-house results are not defensible.
Dr. Erica Tramuta-Drobnis, VMD, MPH, CPH, founder of ELTD One Health Consulting and a member of the Evidence-Based Veterinary Medical Association, put the problem plainly in her 2024 review for Veterinary Practice News: several POC tests have proven far less useful over time, some carry grey zones that still require a send-out, and a few offer no clinical value at all. Her warning is that false information from a POC test can produce delayed care, unnecessary treatment, and avoidable patient suffering.
Prevalence matters too. A test with 95 percent specificity generates a lot of false positives when you screen a low-prevalence population, which is why proBNP is a poor wellness screening tool and a reasonable diagnostic adjunct in a dyspneic patient.
Free RACE-Approved CE: 10 POC Tests Flying Under the Radar
If you want the current clinical picture from someone who has worked both sides of this, Vet and Tech is hosting Re-writing Rapid Testing: 10 POC Tests Flying Under the Radar on August 20, 2026 at 1:00 PM Eastern. It is free, RACE-approved, and worth 0.5 CE credits.
The instructor is Dr. Bonnie Bragdon, DVM, MS, who earned her DVM and MS in Veterinary Clinical Sciences at The Ohio State University, spent nearly a decade in practice as an associate, owner, and animal control director, and co-founded the Independent Veterinary Practitioners Association. She has also held veterinary affairs leadership roles on the diagnostics manufacturing side, which means she can speak to both the validation data and the commercial claims layered on top of it.
The session covers the history and current use of POC tests, accuracy data, practice-level advantages, and the underused tests most general practitioners have never run. Registration is on the Vet and Tech webinar page.
Common Questions About Veterinary Point-of-Care Testing
1. Are in-house lab results as accurate as reference lab results?
For routine CBC and chemistry on validated, well-maintained analyzers, they are close enough for clinical decisions. For specialized assays like cortisol, they are not.
2. Should a positive SNAP cPL be enough to diagnose pancreatitis?
No. Use it alongside history, imaging, and clinical signs. Its specificity in acute abdomen dogs has been reported as low as 59 percent.
3. How often should POC analyzers be compared against a reference lab?
ASVCP guidance calls for periodic split-sample comparison. Quarterly is a reasonable working cadence for a busy practice.
4. Does a negative POC test rule out disease?
Rarely. Negatives lower probability. They do not eliminate it, particularly early in disease.
The clinicians who get the most out of point-of-care testing are not the ones with the newest analyzer. They are the ones who know, test by test, exactly what a positive and a negative are each worth in the patient standing in front of them.
As Bragdon frames it in her webinar abstract, the goal is testing on the clinic's schedule rather than the reference lab's timeline, and that only works if you trust the number for the right reasons.
Sources
- Tramuta-Drobnis E. Veterinary point-of-care tests: Evidence-based insights. Veterinary Practice News, December 2024. https://www.veterinarypracticenews.com/point-of-care-testing-evidence/
- Flatland B, Freeman KP, Vap LM, Harr KE. ASVCP guidelines: quality assurance for point-of-care testing in veterinary medicine. Vet Clin Pathol. 2013;42(4):405-423.
- Haworth MD, Hosgood G, Swindells KL, Mansfield CS. Diagnostic accuracy of the SNAP and Spec canine pancreatic lipase tests. J Vet Emerg Crit Care. 2014;24(2):135-143.
