Understanding Your Full Blood Count (FBC) Test Results
Written by MediLeave Editorial Team. Medically Reviewed by Dr Sabrina Campbell BSc MBBS MRCGP FRACGP MSc. Last reviewed 4th Jan 2026.
How Long Does a Full Blood Count Test Take?
A Full Blood Count check, often called an FBC test, is one of the most common blood tests ordered by doctors in Australia. It provides important information about your overall health by measuring different components of your blood, including:
• Red blood cells
• White blood cells
• Platelets
Seeing your blood test results can sometimes be worrying, especially if a number is marked as “high” or “low”. It’s important to understand that small changes in FBC results are very common and often do not mean there is a serious health problem.
A single blood test cannot diagnose a medical condition independently. Many factors can temporarily affect your blood results, including:
• A recent cold or viral infection
• Stress or poor sleep
• Dehydration
• Mild inflammation
For example, a slightly raised white blood cell count may simply mean your immune system has recently been active.
Doctors always interpret FBC results alongside:
• Your symptoms
• Your medical history
• Your medications
• Your physical examination
Looking at the full picture helps your doctor decide whether the results are reassuring or whether further tests are needed.
If something does require closer attention, your doctor may recommend additional blood tests such as:
• Iron studies
• Vitamin B12 levels
• Inflammation markers blood work (like ESR or CRP)
The blood collection itself is very quick and usually takes less than five minutes at most pathology centres.
In Australia, pathology services are efficient and Full Blood Count results are usually available within:
• 24 to 48 hours, depending on the laboratory
When an FBC is ordered by a doctor, it is covered under the Medicare Benefits Schedule. Most major pathology providers offer bulk billing, meaning there is often:
• No out-of-pocket cost
What to Expect Before, During and After an FBC Test
Before the test
Most people do not need to do anything special. You can eat and drink normally unless your doctor has asked you to fast for other blood tests. Drinking plenty of water beforehand can help make the blood draw easier.
During the test
You may feel a brief pinprick when the needle is inserted. The process is fast and usually finished within seconds.
After the test
Mild bruising or tenderness at the needle site can occur and usually settles quickly. You can return to your normal activities straight away.
Tips to Make Your Blood Test Easier
To help your blood test go smoothly:
• Stay well hydrated
• Wear loose or short-sleeved clothing
• Eat a light meal unless fasting is required
• Take slow, steady breaths if you feel nervous
How MediLeave Can Help With Your Blood Tests
MediLeave and it’s telehealth doctors make getting a Full Blood Count check referral simple and convenient without needing to attend a medical clinic in person.
You can speak with an Australian AHPRA-registered GP via secure video consultation:
• From your home or anywhere that suits you
• Using your phone or computer
If appropriate, your doctor can email your pathology referral directly to you. You can then attend:
• Any pathology provider that is convenient for you
Once your results are available, you can also book a follow-up telehealth appointment with MediLeave to:
• Review your FBC results
• Understand what they mean
• Discuss whether any further tests or treatment are needed
Final Thoughts on Full Blood Count Tests
A Full Blood Count is a quick, straightforward and highly informative blood test. It is commonly used in Australia for:
• Routine health checks
• Investigating new symptoms
While abnormal results can be concerning, many changes are temporary and harmless. If you have questions about your Full Blood Count results, it’s always best to discuss them with a doctor who can interpret them in the context of your individual health and provide personalised advice.
The content provided is for general informational purposes only and does not constitute medical advice, nor is it a substitute for professional medical consultation. The views or recommendations expressed in this article and any linked resources do not necessarily reflect those of MediLeave or its affiliates.
