Serum chemistry analysis is something most veterinarians use at least daily, and often many times throughout their workday.

These tests can be used for well-patient health checks, for pre-surgical bloodwork, and to assess an ill patient.

Having accurate results and a system for obtaining them is important. So, when choosing the best method or machine for your practice’s needs, it makes sense to put research and time into that decision. Here are some things to consider…

Should You Use an In-House Chemistry Analyzer, or Send Samples to an Outside Lab?

Each veterinarian has their own preference. And many veterinary practices use a combination of both—in-house analyzers for when results are needed immediately (such as for guiding the treatment plan for an ill or injured patient), and an outside laboratory for more routine testing.

Depending on the pricing structure, an in-house machine might also allow the practice to keep a higher percentage of the profits with each test performed—although this will probably depend on volume and other factors such as contracts and maintenance. Either way, there is some freedom to create your own system for your practice flow.

What Should a Veterinarian Consider When Choosing an In-House Chemistry Analyzer?

Here are a few important considerations before making a purchase…

• Brand preference. Sometimes, a veterinarian or their team members prefer a particular brand due to previous experience or their relationship with the company or sales representative. Certain companies may offer discounts on other services or tests (such as snap tests, hematology analyzers, or consults with specialists) as a perk of using their equipment, which may make financial sense for a practice.

• Contracts. Sometimes, particularly when equipment is heavily discounted, there may be “strings” attached, such as a requirement to perform a certain number of tests per month (and a penalty for not doing so). It’s always important to check the contract closely when making a purchase or signing an equipment lease.

• Costs. Obviously, the cost of the chem analyzer itself should be considered. But remember to also factor in the costs of supplies (rotors, etc.) and the cost of each test relative to the cost to the client. 

• Machine specifics. Which specific tests are available (chem panels vary in size and comprehensiveness), and for which species? Are single tests available, for when you only need to retest one specific value (and how much do supplies for these tests cost versus the larger panels)? How fast are the results? How much blood is needed to run each test—and does the blood need to be spun down first? 

• Ease of operation. Is the machine simple and intuitive to use? Is training provided by the company that sells the machine? And, how are results added to a patient’s medical record? 

• Warranty and maintenance. Ask if there is a warranty included, what it covers, how long it’s good for, and if there’s an option to renew it once it runs out. Also, ask about routine maintenance costs, if there’s a helpline available if you have questions, and how fast an issue with the machine can be repaired/resolved.

• “Real-world” performance. Ask around and see if any colleagues in your area use the equipment, and see what their experience has been. Or, see if the company will let you use the equipment on a short trial period before buying.

IDEXX, Abaxis, and Heska

These three companies are popular choices for veterinary practices. Here are the stated advantages of highlighted chem analyzers from each company…

IDEXX Catalyst One Chemistry Analyzer

IDEXX’s machine offers up to 34 parameters for chemistry, electrolytes, and immunoassay profiles in a single run. They note the practitioner has flexibility in terms of test comprehensiveness, including individual tests and preloaded CLIPs (pre-programmed chem profiles, or the option to create custom testing profiles). Results are available in minutes, and they advertise high accuracy from proprietary technologies. The machine is supposed to be simple to use (“load-and-go” with whole blood, serum, or plasma), for easy workflow. The IDEXX Catalyst One also features 24/7 auto-monitoring and maintenance.

Abaxis VETSCAN VS2 Chemistry Analyzer

The Abaxis analyzer is a small, portable option. It allows a practitioner many options for analyzing chemistry, electrolyte, acid-base, and immunoassay tests, with 12 testing profiles available. The machine is advertised to be easy to use (only a few steps to use, and minimal maintenance), with the capability of connecting to practice management software. The VETSCAN VS2 operates on as little as 2 drops of whole blood, serum, or plasma, with results in 12 minutes. It features its own intelligent Quality Control (iQC) system, which contributes to accuracy.

Heska Element DC5X Chemistry Analyzer

Heska advertises that their analyzer offers ease of use, high performance/volume capabilities, and “gold standard” technology. Ease of use means a fully automated process (“load and go”), an intuitive touchscreen, and easy integration with practice management software (with bi-directional communication). High performance means up to five samples per operation, and up to 190 tests per hour, with the option to preload up to 50 pipettes at once to save time. Veterinarians can choose from a broad, pre-programmed panel or customize to run only the tests needed. Only 10mL of sample is needed per test. Heska also advertises a free warranty.

Keep in mind that there are different analyzer models available from each company that have varying specifications and that details may change over time. So always confirm the specifics before making a purchase.

There are many options available, so it’s important to do some research and see what’s the best fit for an individual practice and if any special deals can be obtained when purchasing or leasing. It’s worth the time since the machine will probably be used frequently to serve the needs of your patients and clients.

Written by: Dr. Tammy Powell, DVM