The neutrophil count is the absolute number of neutrophils in a full blood count, measured directly in blood in ×10⁹/L. Practitioners use it to spot active infection or inflammatory load, and to judge whether a low count is benign or needs a GP. Recent infection, injury, surgery, smoking and corticosteroids raise it, so read it with the client's recent history.
| Test type | Measured in a blood sample |
|---|---|
| Measurements required | Neutrophils only |
| Sample and collection | Blood draw at a collection centre |
| Preparation | This test doesn't need fasting on its own. |
| Turnaround | 3 to 5 business days |
| Available through | Full Blood Count, part of the Baseline Health Check. Also in: Full Body Health Check. |
| Pricing | Included in the $99 Baseline Health Check |
| Results | Returned in the Vively practitioner platform, beside your client's other markers |
What are the Neutrophils reference and optimal ranges?
| Typical lab reference | Vively optimal | |
|---|---|---|
| Adults | 2.0 to 7.5 ×10⁹/L | No separate optimal range. We read it against lymphocytes, total white cells, hs-CRP and the trend. |
Labs differ, so read the result against the range printed on the client's report, as RCPA guidance advises.
Check a client's Neutrophils result
Enter the value from your client's lab report to see where it sits against the typical lab range and the Vively optimal range.
A guide only, not a diagnosis. One result is a starting point: read it with symptoms, history and a repeat test. Labs differ, so check the result against the range on your client's report. Nothing you enter is stored or sent.
How do you arrange Neutrophils testing through Vively?
- Get verified. Practitioners with a recognised qualification or membership (ATMS, NHAA, ANTA, Dietitians Australia, NSA, CMA or Ahpra registration) can request free practitioner access.
- Choose a panel. Log in to the practitioner platform and pick a panel that includes Neutrophils, or build your own. It is included in the $99 Baseline Health Check.
- Client collects. Your client collects at a partner collection centre, with their request on their phone or printed.
- Review results. Results come back to you in the practitioner platform, beside your client's other markers, ready for the follow-up consult.
Which Vively panels include Neutrophils?
Log in to the practitioner platform to view a panel in full, or build and save your own from 100+ tests and panels.
- Baseline Health Check74 markers across 11 lab groups$99
One fasting blood draw.
Full Blood CountUrea, Electrolytes & CreatinineLiver Function TestsCalcium, Phosphate & MagnesiumLipid StudiesDiabetes & Glycaemic StudiesIron StudiesThyroid Function Tests+3 moreLog in to view this panel - Log in to view this panelFull Body Health Check87 markers · Health checksPrice on sign-up
How do you read Neutrophils without an optimal range?
Neutrophils have no optimal band: the count moves within hours, so read a single result against the trend, the full blood count and inflammation markers.
Infection, exercise, stress hormones and smoking shift the count within hours. A count sitting steadily at 2.5 differs from one that has fallen from 5.0 to 2.1 over a year.
A change in more than one cell line points away from a lifestyle cause. Inflammation markers such as hs-CRP add context.
Many people of African or Middle Eastern descent carry the Duffy-null variant and run counts of 1.0 to 1.5 ×10⁹/L without added infection risk (Reich et al., 2009).
What should Neutrophils be read with?
- ContextMildly high neutrophils, high hs-CRP
Often seen with a current bacterial infection, recent injury or surgery, or an inflammatory flare; repeat once the client is well.
- LowLow neutrophils with high MCV
Possible B12 or folate deficiency, alcohol excess or a medication effect on the marrow; worth discussing with the client's GP.
- LowLow neutrophils, rest of the blood count normal, stable on repeat
Often benign, including Duffy-null neutropenia or the tail of a recent viral illness.
- LowLow neutrophils with low haemoglobin or platelets
Two or more cell lines down needs prompt GP review to rule out a marrow problem.
What can affect a Neutrophils result?
- Bacterial infection, injury or surgery in the past 1 to 2 weeks (raises the count)
- A viral illness in the past few weeks (can lower it for a short time)
- Corticosteroids, lithium and smoking (raise it)
- Medicines that can lower it, including methotrexate, carbimazole, clozapine and some antibiotics
- Long-term high-dose zinc supplements, which can cause copper deficiency and a low count
- Pregnancy, and hard exercise on the day of collection (raise it)
When should you refer the client to their GP?
- Neutrophils below 1.0 ×10⁹/L: GP review within days; below 0.5 ×10⁹/L: same day
- Fever, rigors or feeling acutely unwell with a low count: urgent medical care the same day
- Neutrophils persistently above about 10 ×10⁹/L without a clear infection
- Changes in two or more cell lines, or a lab comment about abnormal or immature cells
- Unexplained weight loss, night sweats, recurrent infections or easy bruising with any abnormal count
How should a client prepare for a Neutrophils test?
Copy or print this to send to your client.
Preparing for your Neutrophils test
- This test doesn't need fasting on its own.
- If your practitioner has requested the Baseline Health Check, fast for 8 to 12 hours before a morning collection (water is fine).
- Avoid testing during or just after an acute infection, as it can shift your count. Book for once you have recovered.
- Take your pathology request to any of 4,000+ collection centres. Bring it printed or on your phone.
- Keep taking prescribed medicines as usual unless your doctor tells you otherwise.
- Results usually take 3 to 5 business days and come to your practitioner. Book your results appointment for after that.
How do practitioners use Neutrophils with clients?
When a mildly high or low count has a clear explanation, address sleep, training load, smoking, and protein, B12 and folate intake, then repeat the full blood count in 6 to 8 weeks.
Neutrophils FAQs
Can a naturopath, nutritionist or dietitian order a neutrophil count through Vively?
Yes. Add it to a client panel on the Vively practitioner platform. It is part of Full Blood Count in the $99 Baseline Health Check, and is also in Full Body Health Check. No account yet? Request free access.
When should I repeat a low neutrophil count?
Repeat in 4 to 6 weeks if the count is between 1.0 and 2.0 ×10⁹/L, the client is well and the rest of the blood count is normal. Time it away from any viral illness. A stable result on repeat, especially in a client of African or Middle Eastern descent, is often benign. A falling count needs GP review.
Does the neutrophil to lymphocyte ratio add anything?
It adds context, and it does not diagnose anything. The ratio rises with infection, acute physiological stress and systemic inflammation. There is no agreed Australian reference interval, so we track it within the same client over time and read it alongside hs-CRP and the full blood count.
Which medicines and supplements affect the neutrophil count?
Corticosteroids, lithium and smoking raise it. Methotrexate, carbimazole, clozapine and some antibiotics can lower it, and long-term high-dose zinc can lower it by causing copper deficiency. Record medicines and supplements on the request, since a drug effect is a common reason for an abnormal count with an otherwise normal blood count.
Is a low neutrophil count with an otherwise normal blood count a concern?
Often not. A low count that is stable on repeat with the rest of the blood count normal can be benign, including Duffy-null neutropenia or the tail of a recent viral illness. Below 1.0 ×10⁹/L still warrants GP review within days, and fever or feeling acutely unwell with a low count needs urgent care the same day.
References
- Royal College of Pathologists of Australasia. RCPA Manual: Full blood count.
- Pathology Tests Explained. Full blood count.
- Reich D, et al. Reduced neutrophil count in people of African descent is due to a regulatory variant in the Duffy antigen receptor for chemokines gene. PLoS Genetics. 2009. Source
- von Vietinghoff S, Ley K. Homeostatic regulation of blood neutrophil counts. Journal of Immunology. 2008.