T-Cell Activation, CD8 Subsets
CD8+ T-cell subsets measure different populations of immune cells that respond to infections, training stress, and recovery. This test helps assess immune function and readiness by showing whether your body has mounted an adaptive immune response or is managing inflammation from intense exercise.
Athletes use this marker to track immune stress from heavy training loads and monitor recovery quality. Elevated activation of CD8 T-cells can indicate either an active infection or acute training fatigue, while patterns in subset distribution (naive vs. memory cells) reflect cumulative training history and vaccination status. Most relevant for endurance and high-volume training phases when immune monitoring supports overtraining prevention.
Turnaround Time
3 days (up to 7 days)
Method
Flow cytometry
Order online
Choose your lab and check out. We send your lab requisition automatically — no doctor visit needed.
Get your sample collected
Visit a lab service center near you for a quick blood draw (or book at-home phlebotomy where available).
See your results
Your results land in your Insider portal, ready to review and act on — that easy.
Your price
$125.00$375
3.0× less than retail
Versus the typical direct-to-consumer retail price for this test (illustrative — consumer prices vary by provider and region).
$125.00
Peer-reviewed sources supporting the educational content on this page.
T-Cell Activation, CD8 Subsets
CD8+ T-cell subsets measure different populations of immune cells that respond to infections, training stress, and recovery. This test helps assess immune function and readiness by showing whether your body has mounted an adaptive immune response or is managing inflammation from intense exercise.
The T-Cell Activation, CD8 Subsets test starts at $125.00 at Labcorp. No doctor's visit and no insurance needed; we do not bill insurance. Fitomics Insider members pay from $99.50.
Results for the T-Cell Activation, CD8 Subsets test are typically ready about 3 days after your draw, and up to 7 days for some samples. Your results land in your Insider portal.
No. When you order the T-Cell Activation, CD8 Subsets test from Fitomics Research Labs, a licensed physician in our 50-state network reviews and signs your requisition after checkout, and it lands in your portal and inbox. Then visit any Labcorp, Quest, or BioReference patient service center for your draw; results post to your Insider portal.
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