How to Use the Tasso+ Device to Collect Your Blood Sample

Remove the Tasso+ device five minutes after activation, or sooner if blood reaches the tube's top fill line. The manufacturer's instructions do not say to wait the full five minutes if the tube is already full. The tube supplied with your kit determines the required volume and sample handling.

Check the kit before opening it

Confirm the device, tube, expiration date and return instructions. Tasso's current brochure specifies device storage at 18-28°C. That range applies to the device, not to every collected sample. Test-specific preparation, including fasting and medication timing, comes from the ordering team.

Collection sequence

The manufacturer's illustrated instructions show preparation, collection and tube handling:

1. Wash your hands. Prepare the upper arm and compatible tube; warm the shoulder area for two minutes using the instructed method.
2. Clean the site with the alcohol swab and let it dry. Remove the button cover and adhesive backing, attach the device, and hang the arm down.
3. Press the button fully once and release. Set a five-minute timer and watch the tube. Blood may take one or two minutes to appear.
4. Peel the device away at five minutes, or earlier when blood reaches the top fill line. Apply the supplied bandage with slight pressure.
5. Remove and cap the tube. Invert it according to its manufacturer's labeling.

How much blood is enough?

Tasso's FAQ reports an average collection volume of 200-600 µL, depending on the tube. A fixed claim of 150 µL or 500 µL for every kit can give the wrong target. Check the tube specification and laboratory requirement. The device alone does not establish that every blood-test panel can use the sample.

If the volume is low, report the fill level to the laboratory or ordering team before deciding whether to ship or recollect. An activated device is single use.

Packing and return timing

Use the supplied return directions. Refrigeration, sample stability, carrier choice and result turnaround depend on the tube and laboratory workflow. Device storage instructions cannot answer those questions. If the kit lacks a clear return plan, get that information before collecting.