Natera
Signatera MRD
Signatera blood draw: two 10 mL Streck tubes every draw, plus one 6 mL EDTA tube for the first test, 21 gauge straight needle, room temperature.
Specimen
Other self-collect
Tubes / kit
Streck cell-free DNA tubes, an EDTA tube for the first test, and return packaging. [S1]
Processing
Invert each tube gently at least 8 times. Do not shake. [S1]
Shipping
Ship with the kit's prepaid materials, as directed in your kit. [S1]
Not a blood draw
Speedy Sticks performs venipuncture (arm blood draws) only. You collect this kit yourself, following the lab's instructions.
Overview
About this kit
Natera runs the Signatera molecular residual disease test. [S1]
Signatera is a personalized ctDNA test. It is built from the patient's tumor tissue, then tracked with repeat blood draws. [S1]
The process
Step by step
- 1
Before the visit
Prep
- Fasting rules are not published. Follow the instructions in your kit.
- 2
The draw
Draw
- Draw two 10 mL Streck tubes at every draw. [S1]
- For the first test, also draw one 6 mL EDTA tube. [S1]
- Fill tubes completely and let each take 60 to 90 seconds. Use a 21 gauge straight needle. [S1]
- 3
Right after collection
Processing
- Invert each tube gently at least 8 times. Do not shake. [S1]
- Keep at 6 to 37 C (43 to 98 F). Do not refrigerate or freeze. [S1]
- 4
Get it to the lab
Shipping
- Ship with the kit's prepaid materials, as directed in your kit. [S1]
At a glance
Tube and processing details
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Avoid a redraw
Common mistakes
Questions
FAQ
How many tubes?
Two Streck tubes, plus one EDTA tube on the first draw. [S1]
Is it refrigerated?
No. [S1]
Need a blood draw too?
Speedy Sticks performs venipuncture (arm blood draws) at home, work or a facility.
Is your lab or kit missing?
Send us your collection instructions and we will build a guide.