# Point-of-Care Testing in Veterinary Practice: Benefits and Limitations ## Key Takeaways - Point-of-care testing (POCT) in veterinary medicine, defined by the ASVCP as testing performed near the patient, offers immediate results for critical decision-making, but analytical performance can be variable compared to reference laboratories. - Lateral flow immunoassays (LFIA) are accessible and rapid for screening infectious diseases or hormones, but their qualitative nature and variable sensitivity/specificity necessitate careful interpretation and potential confirmatory testing. - Biosensor-based systems and benchtop analyzers provide quantitative results for analytes like glucose, electrolytes, and blood gases, enabling serial monitoring, but require robust quality assurance, including operator training and regular quality control per ASVCP guidelines. - Confirmatory laboratory testing is indicated when POCT results conflict with clinical findings, when the result guides high-stakes decisions (e.g., surgery, euthanasia), or when the analyte is known to be unstable or prone to interference with the specific POCT method. - Species-specific reference intervals must be validated for the POCT instrument in use, as applying canine/feline intervals to exotic or non-mammalian species can lead to significant misinterpretation of results. - Comprehensive quality assurance, including written policies, documented operator training, regular quality control with commercial materials, and participation in external quality assessment programs, is paramount for reliable POCT. --- Point-of-care testing (POCT) encompasses any laboratory analysis performed outside the conventional reference laboratory, with instruments ranging from handheld devices to benchtop analyzers positioned near the patient. These systems have become integral to veterinary practice across private clinics, academic centers, and field settings, offering immediate results that can direct emergency treatment, anesthetic monitoring, and chronic disease management. This article examines the analytical principles underlying common POCT platforms, compares their performance with reference laboratory methods, and provides a framework for interpreting results in clinical context. It serves the practicing veterinarian who must decide when in-house testing is appropriate, how to establish quality assurance protocols, and how to recognize when a point-of-care result warrants laboratory confirmation. The clinical question at the center of this review is practical: which POCT results can be trusted for immediate decisions, and which require corroboration? The answer depends on the analyte, the instrument, the operator, and the clinical consequence of error. A glucose measurement guiding insulin dosing carries different risk than a screening heartworm antigen test, and the approach to each should reflect that difference. ## At a Glance | Parameter | Consideration | |---|---| | Primary advantage | Immediate results enabling real-time clinical decisions | | Primary limitation | Variable analytical performance compared with reference methods | | Quality assurance | Requires written policies, operator training, and regular quality control per ASVCP guidelines | | Operator factor | User skill and technique significantly affect result accuracy | | Reference intervals | Must be validated for the specific instrument and patient population | | Confirmatory testing | Indicated when results conflict with clinical findings or carry high-stakes consequences | | Result reporting | Requires accurate transcription and documentation of analyzer-specific values | | External assessment | Participation in external quality assessment programs is recommended | ## Defining Point-of-Care Testing in Veterinary Medicine The American Society for Veterinary Clinical Pathology (ASVCP) defines POCT as any laboratory testing performed outside the conventional reference laboratory, implying close proximity to patients. This definition encompasses a broad spectrum of technologies, from simple lateral flow immunoassays to sophisticated benchtop chemistry and hematology analyzers. The common thread is the intent to generate actionable results within the clinical encounter instead of after sample transport and batch processing. Instrumental POCT systems are typically small, handheld, or benchtop analyzers designed for operation by veterinary personnel who may not have formal laboratory training. This operational reality distinguishes POCT from reference laboratory testing in ways that extend beyond instrument technology. The testing environment, the sample handling procedures, and the interpretation framework all differ, and each introduces potential sources of error that the clinician must anticipate. ## Technology Platforms and Analytical Principles ### Lateral Flow Immunoassays Lateral flow immunoassay (LFIA) technology underpins many veterinary POCT devices, including tests for infectious disease antigens, antibodies, and hormones. These devices operate on capillary flow principles: a liquid sample migrates along a membrane, where analyte binds to labeled antibodies and is captured at a test line. The visual readout appears within minutes, and the format requires no specialized equipment beyond the test device itself. The appeal of LFIA lies in its accessibility, speed, and low cost. These devices have demonstrated utility in settings with limited budgets and time, including small hospitals and field applications. However, the analytical sensitivity and specificity vary considerably between manufacturers and between target analytes. The visual readout, while simple, introduces subjectivity in interpreting borderline results, and the qualitative or semi-quantitative nature of most LFIA tests limits their use for monitoring trends. ### Biosensor-Based Systems Biosensor platforms represent a more sophisticated category of POCT, employing biological recognition elements such as antibodies coupled to signal transduction systems. These devices translate a molecular binding event into a measurable electrical, optical, or electrochemical signal, enabling quantitative measurement of analytes including glucose, electrolytes, and blood gases. Antibodies continue to play a pivotal role in biosensor design because of their exquisite specificity for target antigens. Recombinant antibody technologies have improved the stability, affinity, and design flexibility of these recognition elements, expanding the range of analytes amenable to point-of-care measurement. The quantitative output of biosensor systems supports serial monitoring and trend analysis, but their analytical performance depends on calibration integrity and proper storage of reagents. ### Benchtop Analyzers Benchtop chemistry and hematology analyzers bring multiple analytical channels into the clinic, allowing simultaneous measurement of panels of analytes from a single sample. These instruments employ varied methodologies including spectrophotometry, potentiometry, impedance counting, and flow cytometry. Their size and cost position them between handheld devices and full laboratory automation, and they require more rigorous quality control than simpler platforms. ## Analytical Performance and Reference Laboratory Comparison The central tension in POCT is the trade-off between immediacy and analytical rigor. Reference laboratories operate under controlled conditions with dedicated personnel, calibrated instruments, and validated methodologies. In-clinic analyzers operate in a variable environment with operators whose primary responsibility is patient care, not laboratory science. The ASVCP has expressed concern about the quality of veterinary in-clinic testing and has developed formal quality assurance guidelines to address this gap. These guidelines recommend a structured approach: written policies and standard operating procedures, documented operator training with periodic skill assessment, statistical quality control using commercial controls, participation in external quality assessment programs, and use of properly validated reference intervals. The guidelines also emphasize accurate patient result reporting, including appropriate flags for results outside measurable range. The practical implication is that POCT results should not be assumed equivalent to reference laboratory values. Discrepancies arise from methodological differences, calibration drift, operator technique, and sample quality. When a point-of-care result does not match the clinical picture, or when the result will guide a high-stakes decision such as surgery or euthanasia, laboratory confirmation is warranted. ## Selecting the Appropriate Point-of-Care Platform The choice of POCT platform should follow a structured assessment of the clinical question, the patient's stability, and the practice's caseload. For a stable patient requiring a screening test, a lateral flow immunoassay may be entirely appropriate. For a critically ill patient in which a result will trigger immediate intervention, a benchtop analyzer with documented performance characteriztics is usually the safer choice. The first decision point is whether the test result will change immediate patient management. If the answer is no, the sample is better submitted to a reference laboratory. The second decision point concerns the analyte itself. Some analytes, such as blood gases and ionized calcium, degrade rapidly after collection and are best measured at the point of care. Others, including most hormones and serologic markers, are stable enough for transport and are better served by reference laboratory methods with established validation. Species and patient size also influence platform selection. A benchtop chemistry analyzer designed for canine and feline samples may require larger sample volumes than are practical for a neonatal kitten or a pet bird. Practices that see exotic species, pocket pets, or production animals must verify that the analyzer's reference intervals and sample volume requirements are appropriate for those species. The [ASVCP quality assurance guidelines for veterinary point-of-care testing](https://pubmed.ncbi.nlm.nih.gov/24320778/) emphasize that reference intervals must be properly established or validated for the species and analyzer in use, and this requirement becomes more demanding as the species mix broadens. ## Quality Assurance and Operator Training A point-of-care analyzer is only as reliable as the quality assurance program around it. The ASVCP guidelines recommend a formalized approach that includes written policies, standard operating procedures, and logs for maintenance, quality control, and patient results. These documents should be accessible at the analyzer location, not stored in an office or on a computer that is not near the testing area. Operator training is a recurring obligation, not a one-time event. New staff must be trained before they run patient samples independently, and existing staff should have their skills assessed periodically. Training should cover sample collection and handling, analyzer operation, recognition of error codes and flags, and the correct response to quality control failures. A practice that documents training and competency assessment can identify recurring errors and correct them before they affect patient care. Quality control materials should be run according to the manufacturer's recommendations and the practice's written policy. For benchtop analyzers, both normal and abnormal control levels should be tested on a scheduled basis. For lateral flow assays, positive and negative controls may be available from the manufacturer or may need to be sourced separately. The [ASVCP guidelines](https://pubmed.ncbi.nlm.nih.gov/24320778/) also recommend participation in an external quality assessment or proficiency testing program where available, because internal quality control alone cannot detect all method biases. ## Interpretation and Documentation of Point-of-Care Results Point-of-care results must be interpreted with the same rigor applied to reference laboratory results, but with additional attention to the method's limitations. A glucose meter that uses a whole blood sample will report a value that differs from a laboratory plasma glucose measurement, and the direction and magnitude of that difference may vary between devices. The clinician must know the characteriztics of the specific analyzer in use and interpret results accordingly. Serial monitoring is one of the most valuable applications of POCT, but it requires consistency. The same analyzer, the same sample type, and the same operator technique should be used for serial measurements whenever possible. A change in analyzer or sample type between measurements can produce an apparent trend that reflects method differences instead of patient status. Documentation should include the analyzer used, the sample type, the time of collection and analysis, the operator, and any quality control results relevant to that run. This information allows the clinician to reconstruct the testing conditions if a result is later questioned. It also supports the practice's quality assurance program by making it possible to identify operator-specific or time-specific patterns of error. ## Monitoring Parameters and Their Clinical Significance | Parameter | Sample Type | Primary Clinical Use | Key Interpretation Caveats | |---|---|---|---| | Glucose | Whole blood, plasma, or serum | Hypoglycemia screening, diabetic monitoring, insulinoma workup | Capillary and venous samples differ, hematocrit extremes can affect some meters | | Lactate | Whole blood | Perfusion assessment, shock staging, sepsis monitoring | Serial trends are more informative than single values, sample handling must be rapid | | Ionized calcium | Whole blood, anaerobic collection | Critical illness monitoring, parathyroid disease, ethylene glycol toxicity | pH affects ionized calcium, results must be interpreted with concurrent blood gas | | Blood gases (pH, pCO2, pO2) | Whole blood, anaerobic collection | Respiratory and metabolic acid-base assessment | Temperature correction may be needed in hypothermic patients | | BUN and creatinine | Plasma or serum | Renal function assessment, azotemia staging | Point-of-care creatinine methods may differ from reference laboratory methods | | Electrolytes (Na, K, Cl) | Plasma or serum | Fluid therapy monitoring, endocrine disorders, renal disease | Lipemia and hemolysis can interfere with some methods | | PT and aPTT | Citrated plasma | Coagulation assessment, anticoagulant monitoring | Point-of-care coagulation analyzers have variable sensitivity, results may not correlate with reference laboratory values | | Fibrinogen | Citrated plasma | Inflammatory response, disseminated intravascular coagulation | Point-of-care methods may overestimate or underestimate compared with reference methods | | Cardiac troponin | Whole blood or plasma | Cardiac injury assessment | Point-of-care assays may have lower analytical sensitivity than laboratory assays | | Cortisol | Serum or plasma | Adrenal function testing | Point-of-care cortisol assays are less common, reference laboratory confirmation is often needed | The table above summarizes common point-of-care parameters, but the list is not exhaustive. The clinical utility of each parameter depends on the patient's presentation and the practice's caseload. A practice that sees a high volume of diabetic patients will prioritize glucose monitoring, while an emergency practice will emphasize lactate, blood gases, and coagulation testing. ## Species-Specific and Setting-Specific Considerations The correct choice of POCT platform and the interpretation of results vary substantially across species. In production animal practice, lateral flow immunoassays are widely used for herd-level screening because they are inexpensive, rapid, and do not require specialized equipment. The [World Organization for Animal Health terrestrial animal health standards](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) address the use of diagnostic tests in the context of international trade and disease surveillance, and these standards may apply when point-of-care results are used to support movement decisions or disease status declarations. A positive lateral flow result in a production animal setting may require confirmatory testing at a reference laboratory before regulatory action is taken. In exotic and wildlife species, reference intervals are often unavailable or based on small sample sizes. The clinician must interpret point-of-care results with caution and, where possible, compare results with those from the same species obtained using the same method. The [MSD Veterinary Manual](https://www.msdvetmanual.com/) provides species-specific guidance on sample collection and interpretation that can supplement the analyzer manufacturer's information. In emergency and critical care settings, the speed of point-of-care testing must be balanced against the risk of acting on an inaccurate result. A single abnormal value that does not match the clinical picture should be repeated, ideally with a different method or at a reference laboratory, before it drives major therapeutic decisions. This is particularly important for coagulation testing, where point-of-care analyzers may not detect mild factor deficiencies and where results can be affected by sample collection technique. The practice's physical location also matters. A mobile practice or a practice serving remote areas may rely more heavily on point-of-care testing because reference laboratory access is limited. In these settings, the quality assurance program becomes even more important, because there is no external laboratory to serve as a check on analyzer performance. The [ASVCP guidelines](https://pubmed.ncbi.nlm.nih.gov/24320778/) note that point-of-care testing has utility in community and remote settings, but they also emphasize that the same quality assurance standards apply regardless of location. ## Recognized Failure Modes and Early Detection The most common point-of-care failures are not analytical in origin. Operator error, reagent degradation, and environmental conditions account for more discrepant results than instrument malfunction. The ASVCP quality assurance guidelines for veterinary point-of-care testing identify operator training and written standard operating procedures as the first line of defense against these failures. Temperature exposure is a frequent culprit. Lateral flow immunoassays and reagent strips degrade when stored in warm vehicles, near radiators, or in direct sunlight. The discriminating check is simple: run a known positive control or a control line. A weak or absent control line indicates reagent failure, not a negative patient result. Benchtop analyzers with internal quality control materials should flag calibration drift, but only if the operator runs those controls at the frequency specified in the instrument manual. Sample-related errors are equally common. Clotted blood in an EDTA tube produces falsely low hematocrit readings and spurious electrolyte values. Lipaemia, hemolysis, and icterus interfere with spectrophotometric and electrochemical methods to different degrees depending on the platform. The corrective action is to document sample quality at collection, centrifuge samples before analysis where the method requires plasma, and repeat the measurement on a fresh sample when the result does not match the clinical picture. ## Common Operator Errors and Corrective Action Less experienced clinicians tend to overtrust a single point-of-care result, particularly when it confirms a suspected diagnosis. A glucose meter reading of 2.8 mmol/L in a collapsed dog is compelling, but the same reading in a fractious cat that struggled during venepuncture may reflect stress hyperglycemia or sample dilution. The corrective habit is to interpret every point-of-care result against the pretest probability and the physical examination. A second recurring error is the use of reference intervals that do not match the instrument or the species. Reference intervals are method-specific and often analyzer-specific. Transferring intervals from a reference laboratory report to an in-house analyzer produces misclassification. The ASVCP guidelines require that reference intervals be properly established or validated for each instrument and each species before clinical use. A third error is failure to document results in the medical record with the method, the operator, and the time of analysis. This omission becomes critical when a result is later questioned, when a patient is rechecked, or when a regulatory investigation occurs. The corrective action is a standardized result entry form that includes sample quality, analyzer identification, and quality control status. ## Limitations of the Current Evidence The published evidence base for veterinary point-of-care testing is thinner than for human laboratory medicine. Most veterinary studies compare a single analyzer against a reference method using a convenience sample of patients, often with small numbers per species. The ASVCP guidelines acknowledge that consensus recommendations were developed through literature review and expert opinion where controlled studies were lacking. Expert opinion still differs on several points. The acceptable total error for point-of-care glucose and electrolyte measurements remains debated, particularly for critically ill patients where small differences may alter treatment decisions. The role of lactate monitoring in guiding fluid therapy is accepted in emergency medicine, but the optimal sampling site, the timing of repeated measurements, and the thresholds for intervention vary between published protocols and between institutions. For lateral flow immunoassays, the evidence is complicated by the absence of standardized performance criteria across manufacturers. Sensitivity and specificity figures published for one product do not transfer to another product targeting the same analyte. The WOAH terrestrial animal health standards emphasize that test validation must be performed for the specific test, the specific population, and the specific purpose, a principle that applies equally to in-clinic tests. ## Escalation, Referral, and Regulatory Reporting A point-of-care result that contradicts the clinical examination warrants laboratory confirmation. This applies to critical values that would trigger a change in treatment, such as a low platelet estimate in a bleeding patient, a high potassium concentration in a cat with urethral obstruction, or a positive antigen test for a notifiable disease. Reference laboratory confirmation is also appropriate when the result falls outside the validated measuring range of the instrument, when the sample was visibly compromised, or when the operator is uncertain about the quality of the run. Specialist consultation is indicated when repeated point-of-care results are inconsistent, when the clinical picture and the laboratory data cannot be reconciled, or when the case involves a species for which the analyzer has not been validated. Clinical pathologists can advise on method-specific interferences, on the selection of confirmatory tests, and on the interpretation of results that fall near decision thresholds. Regulatory reporting obligations vary by jurisdiction and by disease. Veterinarians should know which diseases are notifiable in their region and should confirm a positive point-of-care result for a notifiable disease with a reference laboratory before reporting, unless the local authority requires immediate notification on clinical suspicion. The WOAH terrestrial animal health code provides international guidance on disease notification and on the laboratory confirmation required for trade-related diagnoses, but national requirements take precedence. | Observation | Likely cause | Discriminating check | |---|---|---| | Control line absent on lateral flow test | Reagent degradation or expiry | Repeat with new kit from verified stock | | Glucose result inconsistent with clinical signs | Sample dilution, stress, or method interference | Repeat on fresh sample, check sample quality | | Electrolyte values shift after repeat run | Clot or bubble in sample | Inspect sample, centrifuge, rerun | | Result outside reference interval in healthy animal | Wrong reference interval for species or instrument | Verify interval source and analyzer match | | Platelet estimate low but no bleeding | Clumping or automated counting error | Examine blood smear manually | ## Frequently Asked Questions ### How Should I Prioritize Point-of-Care Testing When the Budget Is Limited? Prioritize tests that change immediate patient management and where sample stability is a genuine concern. A benchtop biochemistry and electrolyte analyzer, a hematology analyzer, and a coagulation monitor cover the highest-volume emergencies. Lateral flow immunoassays are inexpensive and useful for infectious disease screening, but their sensitivity varies by target and manufacturer, so confirm negative results with a reference laboratory when clinical suspicion remains high. The [ASVCP quality assurance guidelines for point-of-care testing](https://pubmed.ncbi.nlm.nih.gov/24320778/) recommend a formalised approach to instrument selection and ongoing quality control, even in small practices. If you can only afford one platform, choose the one that serves your most common presentations and build a written protocol for referring cases that exceed its analytical range. ### What Can I Do When the Ideal Point-of-Care Analyzer Is Not Available? Use a structured escalation pathway. For urgent electrolyte or acid-base assessment, consider sending samples to a nearby referral laboratory with a courier service, or use a human hospital laboratory if local regulations permit. For coagulation assessment, a properly performed buccal mucosal bleeding time provides a crude but useful screening test when an analyzer is unavailable. For infectious disease testing, lateral flow immunoassays remain a practical alternative, though their analytical sensitivity is generally lower than laboratory-based methods, as described in [reviews of lateral flow immunoassay technology](https://pubmed.ncbi.nlm.nih.gov/37268073/). Document every limitation in the medical record, and state clearly that results were obtained under constrained conditions. Communicate the reduced diagnostic certainty to the owner and recommend confirmatory testing where the result will influence treatment or prognosis. ### How Do Point-of-Care Results Change Interpretation in Exotic or Non-Mammalian Species? Reference intervals for point-of-care analyzers are typically established for dogs and cats, and applying them to birds, reptiles, or small mammals introduces substantial error. Hematocrit and total protein are generally reliable across species, but enzymatic assays, ion-selective electrodes, and coagulation endpoints may behave differently with non-mammalian plasma. For example, reptile and avian red blood cells are nucleated, which can interfere with impedance-based cell counting. The [MSD Veterinary Manual](https://www.msdvetmanual.com/) provides species-specific guidance on sample handling and expected values. When a species-specific reference interval is unavailable, treat point-of-care results as screening data only, and confirm any result that will guide treatment with a laboratory that validates its methods for that species. State the limitation explicitly in the record. ### What Records Must I Keep for Point-of-Care Testing to Defend My Clinical Decisions? Maintain a quality assurance log for each analyzer, including daily or weekly quality control results, operator initials, and any corrective actions taken. Keep patient results in the medical record with the analyzer name, the operator, the time of testing, and any comments about sample quality. The [ASVCP guidelines for point-of-care testing quality assurance](https://pubmed.ncbi.nlm.nih.gov/24320778/) recommend written standard operating procedures and periodic operator competency assessment. If a result is discrepant with the clinical picture, record your decision to repeat the test or send to a reference laboratory. This documentation supports your clinical reasoning if the case is later reviewed, and it satisfies the expectations of professional practice standards published by organizations such as the [AVMA practice resources](https://www.avma.org/resources-tools). ### How Should I Explain a Point-of-Care Result That Conflicts with the Clinical Picture? Do not dismiss the result silently. Repeat the test on a fresh sample, check the quality control log, and review the patient's history for interfering factors such as lipaemia, hemolysis, or recent fluid therapy. If the repeat result remains discordant, state plainly to the owner that the in-house test may be inaccurate and that a reference laboratory result is needed before committing to treatment. Explain that point-of-care devices trade some analytical precision for speed and convenience, and that confirmatory testing is standard practice when results do not fit the examination findings. Document the conversation and the plan. This approach protects the patient and the practice, and it aligns with the [quality assurance framework described in the ASVCP guidelines](https://pubmed.ncbi.nlm.nih.gov/24320778/). ### When Should I Report a Point-of-Care Result to a Regulatory Authority? Reporting obligations depend on the analyte and the jurisdiction. Positive results for notifiable infectious diseases, such as rabies, anthrax, or certain foreign animal diseases, must be reported even when the test is a point-of-care screening assay. The [WOAH terrestrial animal health standards](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/) define which diseases require notification and the expected surveillance framework. Confirm a positive screening result with a reference laboratory before taking irreversible action, but do not delay notification where public health or trade implications are serious. Check your local veterinary board and government agriculture department for species-specific reporting rules, as these vary between regions and production systems. Record the date and time of the report, the receiving authority, and the case reference number in the medical record. ## Related Clinical & Scientific Guides * [Peripheral Blood Smear Evaluation: A Step-by-Step Guide](/knowledge/veterinary-medicine/clinical-pathology/peripheral-blood-smear-evaluation-guide) * [Reticulocyte Counts in Veterinary Medicine: Clinical Utility and Interpretation](/knowledge/veterinary-medicine/clinical-pathology/reticulocyte-counts-veterinary-medicine) * [Cerebrospinal Fluid Analysis in Veterinary Neurology: Collection and Interpretation](/knowledge/veterinary-medicine/clinical-pathology/cerebrospinal-fluid-analysis-veterinary) ## References and Further Reading - [ASVCP guidelines: quality assurance for point-of-care testing in veterinary medicine.](https://pubmed.ncbi.nlm.nih.gov/24320778/). 2013. - [Antibody production, design and use for biosensor-based applications.](https://pubmed.ncbi.nlm.nih.gov/19429487/). 2009. - [Six decades of lateral flow immunoassay: from determining metabolic markers to diagnosing COVID-19.](https://pubmed.ncbi.nlm.nih.gov/33134745/). 2020. - [Lateral flow immunoassays for antigens, antibodies and haptens detection.](https://pubmed.ncbi.nlm.nih.gov/37268073/). 2023. - [American Society for Veterinary Clinical Pathology Guidelines](https://www.asvcp.org/page/QALS_Guidelines). American Society for Veterinary Clinical Pathology. - [MSD Veterinary Manual, Professional Edition](https://www.msdvetmanual.com/). MSD Veterinary Manual. - [American Veterinary Medical Association Practice Resources](https://www.avma.org/resources-tools). American Veterinary Medical Association. - [WOAH Terrestrial Animal Health Code](https://www.woah.org/en/what-we-do/standards/codes-and-manuals/terrestrial-code-online-access/). WOAH. ## Related Articles - [Coagulation Testing in Veterinary Medicine: A Practical Guide](/knowledge/veterinary-medicine/clinical-pathology/coagulation-testing-veterinary-practical-guide) - [Urinalysis in Veterinary Practice: From Collection to Interpretation](/knowledge/veterinary-medicine/clinical-pathology/urinalysis-veterinary-practice-collection-interpretation) - [Quality Control in Veterinary Laboratory Testing: A Practical Guide](/knowledge/veterinary-medicine/clinical-pathology/quality-control-veterinary-laboratory) - [Platelet Function Testing in Veterinary Patients: Clinical Applications](/knowledge/veterinary-medicine/clinical-pathology/platelet-function-testing-veterinary) - [Preanalytical Errors in Veterinary Laboratory Testing: Prevention and Troubleshooting](/knowledge/veterinary-medicine/clinical-pathology/preanalytical-errors-veterinary-laboratory) > This article is educational professional reference material for veterinary audiences. It is not a substitute for veterinary diagnosis, individual clinical judgment, current product labeling, or applicable regulatory requirements.