Overview
Quick answer
A full blood count, printed as FBC or FBE (full blood examination) depending on the lab, is one blood sample that reports haemoglobin, red cell size and number, white cells and their differential, and platelets. FBC, FBE and the US name CBC are the same test. Australian labs report haemoglobin in g/L, not the g/dL used on most American pages: divide g/L by 10 to convert.
Anaemia in adults is defined by the WHO as haemoglobin under 130 g/L in men or under 120 g/L in non-pregnant women. Those adult cut-offs did not change in the 2024 WHO update. Your own report uses the lab's reference interval, which can sit a few grams either side of those numbers, so a woman at 118 g/L can be "in range" on the printout and still meet the WHO definition of anaemia.
A normal FBC does not mean iron stores are fine. Ferritin falls first; haemoglobin is a late marker. That gap is iron deficiency without anaemia, and it is why Australian guidance orders iron studies beside the FBC rather than treating a clear blood count as the whole story.
Overview
Key takeaways
FBC, FBE and CBC are the same panel. Victorian and older GP forms often say FBE; most other Australian reports say FBC.
Australian haemoglobin is printed in g/L. A US article quoting 12.5 g/dL is describing 125 g/L. The number on your report is not wrong; the unit is different.
Reference intervals vary by laboratory and analyser. RCPA tells clinicians to consult the local range rather than a national table. There is no single official Australian "normal FBC".
WHO adult anaemia cut-offs are under 130 g/L (men) and under 120 g/L (non-pregnant women). A result inside your lab range can still sit below that line.
Iron deficiency without anaemia is low ferritin with a normal haemoglobin. The FBC is late; ferritin is the store marker. Do not close the iron question on a normal blood count alone.
ABS 2011-12, the most recent nationally representative biomedical anaemia dataset, found 4.5% of Australian adults at risk of anaemia (6.4% of women, 2.5% of men, 16.0% of people aged 75 and over), using the WHO 2011 cut-offs.
MCV is average red-cell volume. Low leans toward iron deficiency or thalassaemia; high leans toward B12 or folate deficiency, alcohol, liver disease or thyroid disease. RDW often rises earlier than MCV or haemoglobin as new smaller cells mix with older normal ones.
A normal FBC does not rule out B12 deficiency, does not measure iron stores, and is not a cancer screen.
No fasting is required for an FBC on its own. The sample is drawn into an EDTA tube. Medicare item 65070 has a schedule fee of $17.80 from 1 July 2026 and no 12-month frequency cap.
Basics
What a full blood count actually measures
A full blood count is a group of measurements from one sample, not a single number. An automated analyser counts and sizes the three circulating cell lines: red cells (oxygen), white cells (immune defence), and platelets (clotting). Most Australian reports also print a white-cell differential and a set of red-cell indices that describe how big the red cells are and how much haemoglobin they carry.
Red cells and haemoglobin
Haemoglobin is a tetramer. Each subunit holds a haem group with ferrous iron that binds one oxygen molecule. Binding is cooperative: the first oxygen shifts the protein from a low-affinity tense state toward a high-affinity relaxed state, which is why blood loads in the lungs and unloads in tissues. Haematocrit is the fraction of blood that is red cells. Red-cell count is how many cells are in a litre.
White cells and the differential
The total white-cell count is a blunt infection and inflammation signal. The differential splits it into neutrophils (the usual bacterial response), lymphocytes (B cells, T cells, NK cells), monocytes, eosinophils and basophils. A raised neutrophil count is common and non-specific. It is not a CRP substitute.
Platelets
Platelets are cell fragments that plug injured vessels and start the clotting cascade. They live about six days, so the count can change quickly. Iron deficiency can raise the platelet count through a shift in how marrow progenitors are allocated; that pathway is the leading model, not a settled single-hormone story, and it is not a reason to ignore a high result.
The useful move is to read the panel as a pattern, not as a hunt for one flagged line. Haemoglobin tells you about oxygen-carrying capacity right now. The indices tell you how the marrow is building those cells. White cells and platelets answer a different set of questions. None of them measure stored iron.
Reading your results
How to read your FBC on an Australian pathology printout
Australian pathology reports print each line with the lab's own name, unit, and reference interval, plus an H or L flag when a value sits outside that interval. Field names vary. Match the row and the unit, not a remembered US figure.
"Hb" or "Haemoglobin", g/L
The oxygen-carrying protein, in grams per litre. This is the number anaemia definitions use. US pages quote g/dL: divide g/L by 10. A result of 125 g/L is 12.5 g/dL.
"Hct", "HCT" or "PCV"
Haematocrit, also called packed cell volume. Australian labs may print it as a proportion (L/L) or as a percentage. The same physiology, two presentations. Do not compare a 0.40 result to a 40% result as if they disagreed.
"RBC" or "Red cell count", x10^12/L
How many red cells are in a litre of blood. The US x10^6/µL figure is the same number.
"MCV", fL
Mean cell volume, the average size of your red cells. RCPA's adult guide is 80 to 100 fL. Below that is microcytosis; above it is macrocytosis. This is a pattern clue, not a diagnosis.
"MCH" and "MCHC"
Mean cell haemoglobin (pg) and mean cell haemoglobin concentration (g/L). They usually move with MCV. Low values are the "hypochromic" half of iron-deficiency anaemia.
"RDW", %
Red-cell distribution width, the spread of red-cell sizes. A rising RDW means new cells are a different size from the older ones still circulating. That often happens before MCV or haemoglobin leave the reference interval.
"WCC", "WBC" or "Leucocytes", x10^9/L
Total white-cell count, then a differential (neutrophils, lymphocytes, monocytes, eosinophils, basophils) printed as absolute counts in the same unit. Percentages without the absolute count are less useful.
"Platelets" or "Plt", x10^9/L
RCPA's adult guide is 150 to 400 x10^9/L. The US x10^3/µL figure is the same number. A film (blood-film review) is added when the analyser flags the sample, not as a routine extra on every count.
The H or L flag only means the value sat outside that lab's reference interval. It is not a diagnosis, and a line without a flag is not a clean bill of health. Two Australian labs can print different intervals for the same analyser family; that is expected, not a sign either report is wrong.
Thresholds
Lab range vs the WHO anaemia cut-off
Two different questions get collapsed into "is my haemoglobin normal?" One is the lab interval printed beside your result. The other is the WHO definition of anaemia. They are not required to agree.
WHO adult cut-offs did not move in 2024
The 2024 WHO guideline still defines anaemia as haemoglobin under 130 g/L in men and under 120 g/L in non-pregnant women aged 15 to 65. The update changed young children (6 to 23 months now under 105 g/L) and the second trimester of pregnancy (now under 105 g/L). Adult numbers are the 2011 numbers.
Your report uses the local lab interval
RCPA defines anaemia as haemoglobin below the local reference range for age and sex, and tells clinicians to consult that range. Pathology Tests Explained publishes example adult intervals of 135 to 175 g/L (men) and 115 to 165 g/L (women), labelled as examples, not a national standard. Public-hospital sheets differ by a few grams either way.
The 118 g/L problem
A woman whose haemoglobin is 118 g/L can sit inside a lab interval that starts at 115 g/L, so the report prints no flag, and still meet the WHO definition of anaemia. The reverse also happens: a lab floor above 120 g/L will flag a result the WHO would not yet call anaemia. Read both numbers.
Lifeblood donation eligibility is a third, different question. Whole-blood donation uses 120 to 165 g/L for women and 130 to 185 g/L for men. Clearing a donation floor is not the same as having comfortable iron stores, which is why a donor can be accepted and still be sent for iron studies.
Beyond the reference range
Reference range vs a preventative target
The interval on the report marks where a laboratory's reference population sits. It is not a personal target, and it is not trying to catch early iron-deficient erythropoiesis.
A lab interval is a population range, not a goal
Reference intervals are built from a local population and a specific analyser. They are designed to flag clear disease, not to describe a comfortable preventative band. That is why two labs disagree, and why "in range" is a weak answer to "is this a good place to be?"
Hemexa's haemoglobin band sits tighter than the lab floor
Hemexa's own clinical policy treats haemoglobin of 130 to 145 g/L as the preventative optimal band for women, with a watch band of 115 to 165 g/L, and 145 to 165 g/L as optimal for men, with a watch band of 130 to 180 g/L. Those watch floors match the reference interval Hemexa's pathology partner, Healius Pathology, reports. The tighter optimal band is Hemexa policy, not a published medical standard, and it should be discussed with your clinician rather than chased as a diagnosis.
MCV is watched inside the usual 80 to 100 fL guide
Hemexa treats MCV of 85 to 95 fL as the preventative optimal band, with a watch band of 80 to 100 fL that matches RCPA's adult guide. A result still inside 80 to 100 can be a mixed population (small and large cells averaging to 'normal'), which is why RDW belongs in the same glance.
Trend haemoglobin and MCV across annual results rather than judging a single draw, and read them beside ferritin, B12 and CRP. A watch-band haemoglobin with a falling ferritin is a different conversation from a watch-band haemoglobin on its own.
Haematology intervals still vary by laboratory. The wider argument, including why a printed range is not a personal target, is on the reference range vs optimal range guide.
The companion fact
Why a normal FBC does not rule out iron deficiency
This is the companion fact to the ferritin guide, and the reason the two pages should be read together. Iron deficiency is a sequence. Anaemia is the last chapter, not the first.
Stores fall first
Ferritin drops while haemoglobin, MCV and MCH are still inside the reference interval. Camaschella (NEJM 2015) calls haemoglobin and MCV late, insensitive markers. GESA 2022 and Lifeblood say the same: anaemia occurs late in the stages of iron deficiency.
Then the marrow starts building smaller cells
Transferrin saturation falls and RDW often rises as new microcytes mix with older normal cells, sometimes before MCV or haemoglobin leave the interval (McClure et al., JAMA 1985). The average cell size can still look ordinary while the mix has already changed.
Haemoglobin falls last
Only once stores are depleted enough to slow red-cell production does haemoglobin drop, and MCV and MCH then fall into the microcytic, hypochromic pattern most people picture as iron-deficiency anaemia. Waiting for that pattern means waiting until the store problem is already advanced.
Lifeblood writes the picture as "iron deficiency without anaemia": haemoglobin normal, ferritin down, MCV normal or down. There is no reliable published Australian percentage for that state, so this guide will not invent one by subtracting anaemia prevalence from ferritin-deficiency prevalence. The practical point is simpler: a normal FBC does not close the iron question.
For ferritin thresholds, inflammation, and how to read iron studies on an Australian report, see the ferritin and iron studies guide.
How common
How common is anaemia in Australia?
4.5% of Australian adults were at risk of anaemia
The ABS Australian Health Survey Biomedical Results for Chronic Diseases, 2011-12, used WHO 2011 cut-offs and found 4.5% of people aged 18 and over at risk of anaemia, about 760,000 people. This is the most recent nationally representative biomedical anaemia dataset. There is no newer ABS haemoglobin survey.
Women 6.4%, men 2.5%, and 16% of people aged 75 and over
The same ABS release split the adult figure to 6.4% of women and 2.5% of men. Prevalence rose to 16.0% at age 75 and over, against 3.6% under 75. Adults with impaired eGFR were at risk in 19.7% of cases, against 4.0% with a normal eGFR.
Depleted iron stores are much more common than anaemia
MJA 2024, reading the ABS Biomedical Results for Nutrients 2011-13 tables, reports 22.3% of Australian women with ferritin under 30 µg/L and 3.5% of men iron deficient. A separate 2020 survey of women aged 18 to 39 in NSW, Victoria and Queensland found 34.8% under that same cut-off. Those are store figures, not anaemia figures, and they are why a normal FBC can coexist with a very common iron problem.
Who should test
Who should consider a full blood count?
Unexplained fatigue
- Australian fatigue guidance puts FBE or FBC on the first-line list, with fasting glucose, TSH, EUC, liver function tests, and ESR or CRP
- The eTG figure and the current RCPA Manual also include ferritin or iron studies
- A clear FBC does not finish that workup if ferritin has not been checked
Pregnancy
- RACGP Red Book and RANZCOG C-Obs 3b: FBE at the first antenatal visit, looking at haemoglobin, MCV and platelets
- A repeat FBE at around 28 weeks
- RCPA antenatal screening also lists a third count later in the third trimester
Medicines that need a count
- MBS note PN.0.33 exempts item 65070 from the usual same-day claiming rule when it is used to monitor chemotherapy, immunosuppressants, clozapine, methotrexate, sulfasalazine, gold, ticlopidine or penicillamine
- That list is the strongest Australian documentary hook for "this test is how we watch the marrow on these drugs"
- Unexplained bruising, recurrent infection, or a known blood disorder also belong with a GP, not with a preventative page alone
Hair loss and perimenopause workups in Australian college documents lead with ferritin, TSH and the clinical story. An FBC is reasonable as part of a broader anaemia or fatigue screen, not as the primary test for those presentations.
Fatigue is the presentation that most often lands an FBC on an Australian request form. See the always tired blood tests guide for how the count sits beside TSH, ferritin, glucose and liver enzymes.
Red-cell indices
What MCV, MCH and RDW actually tell you
The red-cell indices are how the analyser describes the cells it counted. They are more useful as a pattern than as three isolated numbers.
MCV: average size
MCV is haematocrit divided by red-cell count, reported in femtolitres. Low (microcytosis) leans toward iron deficiency or thalassaemia. High (macrocytosis) leans toward B12 or folate deficiency, alcohol, liver disease, hypothyroidism, some medicines, or a flood of young red cells (reticulocytosis). Not all large cells are megaloblasts.
Why B12 and folate make cells large
Both vitamins are required for DNA synthesis. When they run short, the nucleus matures more slowly than the cytoplasm fills with haemoglobin (nuclear-cytoplasmic asynchrony), so the cell is released large. That is settled haematology. A normal MCV does not rule the deficiency out: neurological B12 disease can appear with a normal count, and Australia's folate fortification of bread flour can correct the anaemia clue while the nerve problem continues.
RDW: the mix, not the average
RDW rises when new cells differ in size from the older ones still in circulation. In developing iron deficiency that often happens before MCV or haemoglobin move (McClure et al., 1985). In mixed iron plus B12 or folate deficiency, small and large cells can coexist, RDW runs high, and MCV can look deceptively normal because it is an average of two populations. That mixed-deficiency reading is standard teaching rather than a single modern trial result.
MCH usually tracks MCV. If MCV and MCH disagree, or RDW is high with a "normal" MCV, the next question is whether two processes are running at once, not whether the analyser is broken.
Macrocytosis is only one B12 clue, and a normal MCV does not close that question. See the vitamin B12 test guide for the current interpretive bands and why neurological disease can appear without anaemia.
Limits
What a full blood count cannot show
Iron stores
The FBC cannot measure stored iron. That is ferritin, read with transferrin saturation and, when inflammation is plausible, CRP. Lifeblood, GESA and Australian Prescriber all treat FBE plus iron studies as the pair, not FBE alone.
B12 or folate deficiency without anaemia
Significant B12 deficiency can exist with a normal haemoglobin and a normal MCV. Australian Prescriber 2026 and the RCPA B12/folate position statement both say so; Lindenbaum (NEJM 1988) is the classic description. A normal FBC does not close a neurological or dietary B12 question.
Inflammation, and cancer
Neutrophilia is not CRP. Australian fatigue guidance orders ESR or CRP separately. An FBC can be abnormal in some blood cancers or marrow suppression; it is not a screen for solid-organ cancer, and it does not measure "nutritional status" in the way some commercial pages claim.
The other direction
When haemoglobin is high
A high haemoglobin needs a cause, not a supplement. Do not invent a single Australian "too high" number to panic over. Use the interval on your report, and treat a result above it as a reason to talk to a GP rather than a diagnosis of polycythaemia vera.
Relative rise: less plasma, not more red cells
Dehydration concentrates the blood. Haemoglobin and haematocrit rise without extra red-cell mass. That is a volume problem, and it should be rechecked when you are well hydrated before anyone names a marrow disease.
Secondary erythrocytosis: the HIF-EPO axis
Tissue hypoxia stabilises HIF-2α, which turns on erythropoietin (EPO) production in the kidney. EPO then drives the marrow to make more red cells. Established causes include altitude, smoking (carboxyhaemoglobin and relative hypoxia), lung disease, sleep apnoea, EPO or ESA medicines, and testosterone. The WHO 2024 anaemia guideline still adjusts measured haemoglobin for smoking and elevation because smokers and people at altitude run higher.
Polycythaemia vera is a haematologist diagnosis
Primary polycythaemia vera is usually JAK2-driven and typically has a low EPO, the opposite of the secondary pattern. WHO diagnostic criteria include haemoglobin above 165 g/L in men or 160 g/L in women (published as 16.5 / 16.0 g/dL), or haematocrit above 0.49 / 0.48, plus marrow and JAK2 findings. Those are criteria for a specialist workup, not a consumer cut-off to self-apply. Lifeblood sends donors to a GP when haemoglobin is above 165 g/L (women) or 185 g/L (men); that is eligibility, not a diagnosis.
How to order
How Australians get a full blood count
| Approach | Best for | Typical cost | Includes test? |
|---|---|---|---|
| GP-ordered, Medicare-funded | Symptoms, pregnancy, medicine monitoring, or a clinical reason your GP documents | Often bulk-billed or low gap. Item 65070 (full blood count) has a schedule fee of $17.80 from 1 July 2026 (85% benefit $15.15). No 12-month frequency cap. Item 65060 is haemoglobin only, schedule fee $8.25 | Yes. Haemoglobin, red-cell indices, white-cell count and differential, platelets, and a film if the analyser flags it |
| GP-ordered, private (no clinical indication) | Asymptomatic preventative testing outside a documented clinical reason | Varies by pathology provider; often bundled inside a broader private panel rather than billed as a standalone FBC | Yes, as part of a broader panel |
| Membership platforms (e.g. Hemexa) | Annual baseline coverage with the FBC read beside ferritin, B12, CRP and the rest of the panel | ~$1,199/year (full membership) | Yes; the full blood count markers sit on the annual baseline, among 76–80 signature markers |
No fasting is required for an FBC on its own. The sample is collected into an EDTA tube (typically 4 mL to 5 mL in adults). If the same form also asks for fasting glucose, insulin or a lipid profile, you fast for the visit, not because the FBC needs it. Pathology in Australia requires an authorised request from a registered medical practitioner.
What Medicare funds for a full blood count, and when a preventative panel is a private cost, is on the Medicare blood tests guide.
FAQ
Frequently asked questions
- Are FBC, FBE and CBC the same test?
- Yes. Full blood count (FBC), full blood examination (FBE) and complete blood count (CBC) are names for the same panel. RCPA, Pathology Tests Explained and Healthdirect list them as synonyms. Victorian and older GP forms often print FBE; most other Australian reports print FBC.
- Why is my haemoglobin in g/L when every US article uses g/dL?
- Australian labs report haemoglobin in grams per litre. US consumer pages use grams per decilitre. Divide the g/L figure by 10: 135 g/L is 13.5 g/dL. The result is not ten times too high; the unit is different.
- What is a normal haemoglobin in Australia?
- There is no single official number. RCPA says the interval varies by laboratory. Pathology Tests Explained publishes example adult intervals of 135 to 175 g/L for men and 115 to 165 g/L for women. The WHO definition of anaemia is under 130 g/L (men) or under 120 g/L (non-pregnant women). Read the interval on your own report, then compare it with those WHO cut-offs rather than with a forum range.
- Can I be iron deficient if my FBC is normal?
- Yes. That is iron deficiency without anaemia: ferritin already low, haemoglobin still inside the reference interval. Stores fall first; the blood count is late. Australian guidance treats FBE plus iron studies as the pair. A normal FBC does not close the iron question.
- Does a normal FBC rule out B12 deficiency?
- No. B12 deficiency can cause neurological symptoms with a normal haemoglobin and a normal MCV. Australia's mandatory folic acid fortification of bread flour can also correct the megaloblastic anaemia that would otherwise flag the problem, while the nerve injury continues.
- Why is my MCV normal if I might have both iron and B12 problems?
- MCV is an average. Small iron-deficient cells and large B12-deficient cells can cancel toward a mid-range MCV while RDW, the spread of sizes, runs high. That mixed-population reading is standard haematology teaching. It is a reason to look at ferritin and B12 together, not a reason to trust a single "normal" MCV.
- Why did my platelets go up when my iron is low?
- Reactive thrombocytosis is well described in iron deficiency (observed in roughly 13% to 33% of iron-deficiency anaemia series). The leading model is that low iron biases marrow progenitors toward platelets rather than red cells; thrombopoietin is not the driver. Severe iron deficiency can rarely lower platelets instead. Either way, the count belongs in the same conversation as the ferritin, not as a separate unexplained finding.
- Do I need to fast for a full blood count?
- No. Pathology Tests Explained and Healthdirect both say no special preparation. Fast only if other tests on the same form require it.
- Why did the lab do a blood film?
- The analyser flags samples it cannot classify cleanly. A scientist or haematologist then reviews cell shape under the microscope. A film is a reflex, not a second test you failed.
- Can a full blood count screen for cancer?
- No. An FBC can be abnormal in some blood cancers or when treatment suppresses the marrow. It is not a population screen for solid-organ cancer, and it does not measure nutritional status.
- How much does an FBC cost in Australia, and does Medicare cover it?
- When a GP judges it clinically necessary, Medicare funds a full blood count under item 65070. The schedule fee is $17.80 from 1 July 2026 (85% benefit $15.15). There is no 12-month frequency cap on that item. Many people pay nothing when the test is bulk-billed. The schedule fee is not an out-of-pocket quote. Membership platforms that include the FBC on a comprehensive annual baseline start around AU$1,199 per year.
- What haemoglobin should I aim for, not just avoid anaemia?
- Clearing the WHO cut-off is not the same question as sitting in a comfortable preventative band. Hemexa's own clinical target is 130 to 145 g/L for women and 145 to 165 g/L for men, layered on the Healius Pathology reference interval. That is Hemexa policy, not a universal medical standard, and it should be discussed with your clinician rather than chased through unsupervised supplements.
How Hemexa fits
How Hemexa can help
A full blood count is most useful as a trend, read beside ferritin, B12 and CRP, with a preventative band that flags a downward haemoglobin before it crosses a diagnostic line.
The FBC on the annual baseline, not as a standalone PDF
Hemexa includes haemoglobin, haematocrit, red-cell count, MCV, MCH, MCHC, RDW, platelets, white-cell count and the five-part differential on the 76–80 marker annual baseline, under Blood & Oxygen Transport and Immune Function, among 76–80 signature markers. Collection is through Healius Pathology.
A tighter haemoglobin band than the lab floor
Hemexa's dashboard shows haemoglobin against both the Healius reference interval and a tighter preventative optimal band (130 to 145 g/L for women, 145 to 165 g/L for men), so a result that is still technically in range but trending down is visible before it would meet a WHO anaemia definition.
Clinical safety review on dangerous counts
Haemoglobin below 90 or above 190 g/L, platelets below 80 or above 700 x10^9/L, and neutrophils below 1.2 x10^9/L are flagged for same-day clinical follow-up. White-cell count below 3.0 or above 15 x10^9/L is flagged for review within a few days. Those thresholds are Hemexa's clinical safety policy, not a substitute for emergency care if you are unwell.
Sources
References
Royal College of Pathologists of Australasia. Full blood count (RCPA Manual, last reviewed 2 January 2024). View source ↗
Royal College of Pathologists of Australasia. Haemoglobin (RCPA Manual, last reviewed 2 January 2024). View source ↗
Royal College of Pathologists of Australasia. Mean cell volume (RCPA Manual). View source ↗
Royal College of Pathologists of Australasia. Platelet count (RCPA Manual). View source ↗
Pathology Tests Explained. Full blood count (last updated 26 January 2026). View source ↗