A Better Way to Get Labs Done: Introducing the Tasso Blood Draw System
For many patients, getting blood drawn is the most dreaded part of the medical experience. Whether due to fear of needles, pain, or difficulty finding a usable vein, traditional venipuncture can be a frustrating barrier to care. At Affinity Whole Health, we’re proud to offer a solution that’s changing the experience entirely: the Tasso blood draw system.
Now available in all of our clinics, this innovative technology delivers fast, painless, and accurate lab results without the need for a needle into your vein. For patients who are "hard sticks," or those who simply hate blood draws, this is a game-changing option.
What Is the Tasso Device?
The Tasso system is a small, wearable device that collects capillary blood from the upper arm. "It’s a painless way that draws capillary blood into the device and gives us the same laboratory information that we would from a traditional venipuncture,” said Dr. Michael Koehler.
From there, your labs are processed just like they would be from a traditional blood draw—but without the discomfort or hassle.
Why Patients Love It
The benefits of the Tasso system are especially noticeable for patients who:
Have small, deep, or damaged veins (often called "hard sticks")
Have had painful or repeated blood draw attempts in the past
Experience anxiety or fear around needles
The procedure is virtually painless and takes only a few minutes. No need for tourniquets, butterfly needles, or multiple attempts.
Proven Accuracy and Fast Turnaround
One of the most common questions we hear is: “Is it as accurate as a traditional blood draw?”
The answer is yes. In our in-office trials, Tasso blood samples matched traditional venipuncture samples with a high degree of accuracy. We tested both methods side by side, and the results were consistent across key hormone and metabolic panels.
We’ve also partnered with CRL, one of the largest laboratories in the country, to process these samples quickly. Most results return in 48 hours, which means your consultation and treatment planning can move ahead without delay.
Who Is It For?
We use the Tasso device for a wide range of patients, including:
GLP-1 weight loss patients: A single device is used to run a comprehensive metabolic panel (CMP), checking liver and kidney function, blood sugar, and electrolyte levels.
Hormone therapy patients: Capture a full hormone panel, including testosterone, free testosterone, estradiol, LH, hematocrit, and PSA levels.
As Tasso technology evolves, we expect the process to be even more efficient.
No More Gaps in Care
In the past, a busy schedule or unavailable phlebotomist could delay your treatment. With the Tasso system, you always have a backup—so you get your labs done on time, and care stays on track.
Our goal is simple: to make your health journey as efficient and comfortable as possible. The Tasso system helps us do exactly that.
Final Thoughts
No one enjoys getting their blood drawn—but with the Tasso system, that discomfort may be a thing of the past. Whether you’ve struggled with difficult veins or are simply looking for a more comfortable, reliable way to complete your labs, this device is a major step forward.
Affinity Whole Health is proud to offer Tasso in all of our clinics, and we’re working to make at-home blood draws available. Ask your care team if Tasso is the right option for your next lab appointment.