What is tested in a full blood count in Australia?

Summary: A Full Blood Count (FBC) is a common blood test that helps diagnose various health conditions, including anaemia, infections, and blood disorders. The test is simple, quick, and usually requires a referral from a doctor in Australia. Results are typically available within a couple of days, and the test is generally covered by Medicare. While safe, minor side effects like bruising or dizziness may occur.

When your doctor orders a “Full Blood Count” for you, it is one of the most common blood tests Australians get, and for good reason.  Think of it as a peek under the hood of your health, giving doctors valuable clues about what’s going on inside.  Whether your GP has suggested one for you, or you’re just curious about it, here we will look into what an FBC actually involves.

What does a full blood count include in Australia?

This test isn’t just one thing; it’s more like a detailed report card on different parts of your blood.  Here’s a quick rundown of the key players:

Red Blood Cells (RBCs):

Imagine these as tiny delivery trucks, ferrying oxygen all around your body.  Too few trucks? Could be anaemia.  Too many? Might point to dehydration or something going on in your bone marrow – things your doctor will want to investigate.

Haemoglobin (Hb):

This is the actual oxygen-carrying stuff inside those red blood cells.  Low haemoglobin?  Often linked to iron deficiency, a common type of anaemia.

Haematocrit (Hct):

This tells you the proportion of your blood that’s made up of red blood cells. It’s another way to check for hydration levels and anaemia, giving doctors another piece of the puzzle.

White Blood Cells (WBCs):

These are your body’s defence force, fighting off infections.  A high WBC count often signals the body’s battling something – an infection, inflammation, maybe even something like leukaemia.  Low counts could hint at a weaker immune system.

Platelets:

Think of these as the repair crew for your blood vessels. They’re essential for clotting.  Too few, and you might bruise or bleed easily.  Too many might suggest inflammation or a bone marrow issue.

Mean Corpuscular Volume (MCV):

This is all about the size of your red blood cells.  It’s like figuring out if you’re using standard trucks or mini-vans for oxygen delivery!  The size can help pinpoint the specific type of anaemia if there is one.

Summary: FBC helps identify various health issues, from anaemia to blood cancers.

Also read: Routine blood tests in Australia: GP approved - Hola Health

What illnesses can be diagnosed with a complete blood count?

So, what’s the point of all these measurements?  An FBC is surprisingly useful for spotting and keeping an eye on a range of conditions, like:

• Anaemias: From the common iron deficiency to vitamin B12 issues and anaemia linked to chronic illnesses.
• Infections: Whether it’s bacterial, viral, or even fungal, your white blood cells can often tell the story.
• Blood cancers: Leukaemia and other cancers affecting the blood can sometimes show up in unusual blood cell counts.
• Immune system hiccups: Disorders of the immune system can sometimes be reflected in the FBC.
• Inflammatory issues: Conditions like rheumatoid arthritis or lupus, where inflammation is a key factor.
• Clotting problems: Issues with your platelets can point to clotting disorders.
• Dehydration: Your haematocrit can give clues about your fluid levels.

Keep in mind, an FBC is often just one piece of the puzzle.  Doctors usually look at it alongside other tests to get the full picture and confirm what’s going on.

How is a full blood count performed?

The test itself is pretty straightforward:

• Prep: Someone will clean a spot, usually in your inner elbow, with a little antiseptic wipe.
• The draw: A fine needle goes into a vein, and a bit of blood is collected into a tube. Quick and easy.
• All done: Needle out, small bandage on, and you’re good to go.

The whole thing is over in minutes.  You might feel a little pinch, but that’s about it.

What to expect before, during, and after?

• Beforehand: Usually, no big deal.  Unless your doctor says otherwise (maybe if you're having other tests that need fasting), you can eat and drink normally.  Drinking water is always a good idea – it can make finding a vein a bit easier.
• During: Tiny pinch as the needle goes in.  Then it’s over before you know it.
• Afterwards: A small bruise or a bit of tenderness where the needle went in is normal, but it fades fast.  You can generally get right back to your day.

Why would I need a full blood count?

There are lots of reasons your doctor might suggest this test.  Perhaps you’ve been:

• Feeling unusually tired or weak? (Could be anaemia)
• Getting infections all the time? (Might be related to your immune system)
• Noticed unexplained bruises or bleeding? (Potentially may be platelet issues)
• Experiencing joint pain, swelling, or fevers? (Inflammation signs)
• Being monitored for an ongoing condition like kidney problems or cancer?
• Just due for a general health check-up?

Summary: An FBC is useful for investigating health concerns and general check-ups.

Also read: What are a standard routine blood tests in Australia?

Do you need a referral in Australia?

Yes, generally in Australia, you’ll need a referral from your GP to get an FBC.  They’ll listen to your symptoms and decide if the test is necessary.  Specialists can also order them if you’re seeing them for something specific.

Where can you get an FBC in Australia?

There are many locations where you can get them done:

• Pathology collection centres
• Hospitals – both public and private.
• Medical clinics that have their own pathology services.
• Sometimes even your GP clinic if they have an on-site collection setup.

Your doctor will give you a form to take to one of these places.  Some take walk-ins, others you might need to book.

How soon do you get results?

Usually pretty quick – within a day or two.  Your GP will get the results and will let you know if anything needs discussing.  Some places even have online portals where you can check your results yourself.

Any there any risks or side effects from having a blood test?

FBCs are really safe.  Minor things can happen though:

• A bit of bruising or tenderness where the needle went in.
• Feeling a bit dizzy or faint – rare, and more likely if you’re nervous about needles.
• A tiny bit of bleeding after, which stops quickly.

If you get ongoing bleeding or signs of infection (redness, swelling, warmth), just give your doctor a call.

Tips for an easy blood test experience

To make it all smoother:

• Stay hydrated – water makes veins happier.
• Wear sleeves you can easily roll up.
• Eat a light meal beforehand, unless you’re fasting for other tests.
• Try to relax – deep breaths can help if you’re feeling a bit tense.

Quick Frequently Asked Questions

Can I get an FBC without a referral?

No, you’ll need one from a GP or specialist in Australia.

Does Medicare cover it?

Yes, usually bulk-billed under Medicare if your doctor orders it.  Private labs might charge if you don't meet bulk-billing criteria.

Can I eat beforehand?

Yes, unless you're fasting for other tests.

Can an FBC detect cancer?

It can give hints, especially with blood cancers, but it doesn't diagnose cancer on its own. More tests are always needed.

How often should I get one?

Depends on your health.  Routine FBCs aren't needed unless your doctor advises based on your health picture.

How telehealth supports Full Blood Count testing?

• Telehealth appointments: Speak with an AHPRA-accredited online doctor or health practitioner via telehealth services to discuss symptoms, concerns, or routine health checks requiring an FBC.
• Pathology referrals: Receive an online referral for an FBC test, which you can take to a local pathology collection centre.
• Follow-up & results review: Get your results reviewed by an online doctor, with explanations and further recommendations as needed.
• Ongoing health management – If your FBC shows abnormalities, telehealth doctors can provide referrals to specialists or prescribe necessary treatments through online scripts and medical certificates if you need rest.

Final thoughts

A Full Blood Count is a really helpful and simple tool doctors use to understand your health better.  Whether you’re not feeling quite right or just having a routine check-up, it can give valuable insights.  If your doctor has suggested one, honestly, there’s nothing to stress about – it’s quick, easy, and generally covered by Medicare. If you have any questions about your blood test results, always chat with your GP.  They’re the best person to guide you through what it all means.