Band Neutrophils
Band neutrophils are immature neutrophils with unsegmented nuclei released from bone marrow when demand for infection-fighting cells is high. Their presence in blood is called a left shift and commonly indicates acute bacterial infection, sepsis, or significant inflammation. Extreme elevations can also accompany some leukemias and marrow recovery.
Optimal range: who says what
No institution or named practitioner we track states an optimal target for Band Neutrophils. How we verify ranges.
- General guidance, no named sourceFewLow counts expected outside active infection
- Lab reference interval0-5% of WBCWhat a lab report flags against. A lab interval is not an optimal target.
1 providers include this
Complete Blood Count (CBC)
Why Band Neutrophils matters
Immature neutrophils released from bone marrow during acute infection or inflammation. Elevated levels (called 'left shift') indicate the body is urgently producing immune cells to fight infection.
Which Providers Test Band Neutrophils?
Of the panels we itemize, only Empirical Health ($190/year, 100+ biomarkers) includes Band Neutrophils.
1 panel that includes it, cheapest first
| Provider | Annual Cost | Total Biomarkers | $/Biomarker |
|---|---|---|---|
| $190 | 100+ | $1.90 |
$/Biomarker is annual cost divided by the panel's advertised biomarker count, not the price of this one test. We track 23 blood test providers (32 plans); 21 of those plans are itemized marker by marker. Compare all of them.
20 itemized panels do not include Band Neutrophils
Superpower · WHOOP Advanced Labs · Labcorp OnDemand · Life Extension Elite · Everlywell · Mito Health · InsideTracker · Function Health · Marek Health Base · Marek Health Comprehensive · Marek Health Complete · Marek Health Executive · Blueprint · Oura Health Panels · SiPhox Health · Hims Labs · Healthspan · Vitality Blueprint Standard · Vitality Blueprint Elite · Ultrahuman Blood Vision Annual
11 providers not itemized in our matrix
We have not itemized these marker by marker (some sell tests one at a time), so this page cannot say whether they offer Band Neutrophils. Check with them directly.
Life Extension Standard · Quest Health · Ultrahuman Blood Vision · Lifeforce · Hundred Health · Personalabs · Walk-In Lab · HealthLabs · WHOOP Specialized Panels · Marek Health Essential · Vitality Blueprint Upload
Frequently Asked Questions
What is the optimal range for Band Neutrophils?
No institution or named practitioner we track states an optimal target for Band Neutrophils. General guidance without a named source: Few (Low counts expected outside active infection). Lab reference interval: 0-5% of WBC. That is what a lab report flags against, not an optimal target.
Which blood test providers include Band Neutrophils?
1 of the 21 blood testing panels we itemize marker by marker include Band Neutrophils in their panels. This biomarker has limited availability.
Medical Disclaimer
This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.
Last reviewed Sep 23, 2026 · First published Nov 30, 2025