Myeloperoxidase (MPO)
A marker of vascular inflammation tied to unstable arterial plaque and cardiovascular risk.
Consider this test if:
- Building an advanced cardiovascular risk picture beyond standard cholesterol
- Family history of early heart attack, stroke, or coronary disease
- Known atherosclerosis or prior cardiac event and tracking vascular inflammation
- Strong LDL and lifestyle metrics but you want to gauge plaque-related inflammation
- HSA/FSA eligible
- Typical results in 2-4 days · Reviewed by a real clinician
- Drawn at a CLIA/CAP-accredited lab near you ·
Pre-test considerations
No fasting is required for MPO itself. The sample needs careful handling: plasma must be separated and chilled promptly, so draws are timed around lab processing. Acute infection or recent illness raises MPO and other inflammatory markers, so retest when you are well if a result looks unexpectedly high.
Video consult with your Care Team
A 1:1 call to discuss your health.
What members say on Trustpilot
What this test is for
Myeloperoxidase is an enzyme released by activated neutrophils and monocytes during inflammation. It is part of the body's antimicrobial defense, but the reactive oxidants it produces also damage lipids and proteins in artery walls, which is why elevated MPO is read as a marker of vascular inflammation and is associated with unstable atherosclerotic plaque and higher cardiovascular risk. It adds information that standard cholesterol numbers miss, since two people with similar LDL can differ in how inflamed and unstable their plaque is. MPO rises with inflammation generally, so it is interpreted alongside lipids, Lp(a), Lp-PLA2, and your overall cardiovascular picture rather than in isolation.
This test measures the MPO enzyme itself. The separate myeloperoxidase antibody (anti-MPO) test is a different marker used to evaluate ANCA-associated vasculitis, not cardiovascular risk.
What to expect
- 1 Book instantly
Click, book, done. Choose a convenient lab location near you. Transparent, up-front pricing.
- 2 Quick lab visit
Testing to fit your busy schedule, usually 15 minutes or less. Walk-in and appointments available.
- 3 Typical results in 2-4 days
Your results post straight to your dashboard as soon as the lab completes them.
- 4 Expert guidance
Included with Mito membership. A clinician reviews your results and your personalized action plan follows, with clear next steps.
Everything your health needs,
in one membership
-
Every test at our cost
Members pay our cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
-
Continuous tracking, all in one place
Upload past labs and watch your trends over time. Every marker and visit lives in one longitudinal record, so all your care stays together.
-
Year-round clinician support
Text anytime and get clinician-reviewed answers. When you want to go deeper, 1:1 consultations are available at affordable rates.
All for $9/month
Order any test or consult without joining. For $9/month, members unlock member prices, trend tracking, and year-round clinician guidance.
Mito Membership
$9 /mo
cancel anytime
Without membership
$0
pay as you go
At-cost pricing on labs, scans, and more
Priority turnaround on your results
On-demand clinician consults when you need guidance
Personalized action plans across supplements, exercise, nutrition, and sleep
AI health coaching to help you act on your results
Year-round medical support, with in-chat clinician escalation
All your health records in one personal vault, with trends and biological age tracking
Early access to new diagnostics and product releases
More tests to consider
Loading essentials…
Frequently asked questions
View all FAQsHow does pricing work?
Every test shows the member price next to the standard non-member price, so you can see what membership saves you. The member price is our cost — covering the lab and what it takes to run the service — never a profit on the test itself; Mito makes its money on the $9 membership, not on marking up your tests. Membership is $9/mo, and you still pay the lab’s order fee. Prices are itemized before you pay, with no hidden fees.
Where do I get tested?
Choose a partner lab (Quest, Labcorp, or BioReference) at checkout. If your cart spans multiple tests, we consolidate the whole order onto a single lab so you only make one visit.
Is this eligible for HSA/FSA?
Yes. This test is HSA/FSA eligible, and you can pay with your HSA/FSA card at checkout.
When will I get my results?
Your results post to your dashboard once your lab completes them, then a clinician reviews them and your full analysis and personalized action plan (with clear next steps) follow. Turnaround varies by test: specialty assays and at-home kits take longer, and each test shows its expected turnaround before you buy.
Do I need a doctor’s order?
No. Mito provides the lab order for you, so you can book and get tested without a separate doctor visit.
Recently viewed
Loading essentials…