Healthdirect Free Australian health advice you can count on.

Medical problem? Call 1800 022 222. If you need urgent medical help, call triple zero immediately

healthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.

beginning of content

Understanding pathology tests

4-minute read

Key facts

  • A pathology test is a test that examines a sample of your body’s tissues.
  • Pathology tests give more information about your health.
  • They can be used to help diagnose or monitor a medical condition, screen for certain health conditions to find them early, and monitor your response to medicines and other treatments.
  • How long your results take will depend on the type of test you’ve had.

What are pathology tests?

A pathology test is a test that examines a sample of your body’s tissues.

Pathology tests can include tests done on your:

Why does my doctor want me to have pathology tests?

Pathology tests give more information about your health. They can be used to help:

  • diagnose a medical condition (or find a cause for your symptoms)
  • monitor a medical condition over time
  • screen for certain health conditions to find them early, before symptoms develop

Pathology tests can help diagnose, detect and monitor conditions such as:

Pathology tests can also:

  • check levels of medicines in your blood
  • monitor your response to medicines and other treatments

What do I need to do before my test?

Follow any instructions you’ve been given about the test.

For some tests, you need special preparation. This may include:

  • fasting — not eating (and drinking only water) before your test
  • avoiding or having certain foods and drinks before your test
  • stopping or changing medicines or supplements before your test

Always check with your doctor about any preparation that is needed before your tests. Any changes to your diet or medicines should only be made under your doctor’s instruction and supervision.

Let collection centre staff know if you have not followed the instructions for any reason.

Also let your doctor know about any medicines you are taking, including herbal or over-the-counter (non-prescription) medicines.

Check with your doctor or call the pathology collection centre if you:

  • are not sure of what you need to do for your tests
  • have any questions about the tests

More information on blood tests and preparation is available in our Guide to blood testing.

When and how will I get my results?

How long your results take will depend on the type of test you’ve had.

Your doctor can tell you beforehand how long the results are likely to take. In most cases, it’s best to book an appointment with your doctor to discuss your test results.

What do my test results mean?

The best person to help you understand your results is the doctor who ordered the test. This may be your doctor or a specialist doctor.

Sometimes, a result may be labelled by the pathology laboratory as being ‘abnormal’, or ‘outside of the normal range’. This does not necessarily mean that there is a problem.

Your doctor will be able to interpret your test results. They will consider many factors when reading your results. They can talk with you about whether an ‘abnormal’ test result is a sign of a problem for you.

Key points to discuss with your doctor

You might want talk to your doctor about:

  • which tests are best for you and why
  • what you need to do before, during, or after the test
  • what the results might mean for your health, such as whether you need any treatment
  • whether any abnormal results are important
  • whether you will need any follow-up tests

ASK YOUR DOCTOR — Preparing for an appointment? Use the Question Builder for general tips on what to ask your GP or specialist.

Resources and support

The Pathology Tests Explained website has a number of resources and services available if you need help or more information on pathology testing.

Learn more here about the development and quality assurance of healthdirect content.

Last reviewed: October 2022


Back To Top

Need more information?

These trusted information partners have more on this topic.

Top results

From cradle to grave: five pathology tests you will likely have through your life | Know Pathology Know Healthcare

What are five pathology tests you're likely to have in your life

Read more on Know Pathology Know Healthcare website

What the 6 most common pathology tests reveal about your health | Know Pathology Know Healthcare

What the 6 most common pathology tests reveal about your health Apr 1, 2016 0 Comment Post By:Annette Stenhouse Over 500 million pathology tests were ordered for Australians in the last 12 months, covering a vast array of diseases and conditions from cholesterol checks to cancer diagnoses

Read more on Know Pathology Know Healthcare website

Haematocrit | Pathology Tests Explained

Blood is a mixture of cells and plasma. The haematocrit (Hct or PCV) is a measurement of the proportion of blood that is made up of cells. The value is expre

Read more on Pathology Tests Explained website

Blood and pathology tests for arthritis — Arthritis Australia

Before any tests are done, the doctor will ask you about your symptoms and will often examine you for signs of arthritis or other autoimmune features

Read more on Arthritis Australia website

Paracetamol | Pathology Tests Explained

The plasma paracetamol (or acetaminophen) concentration is being measured.

Read more on Pathology Tests Explained website

Complement | Pathology Tests Explained

The complement system is a set of circulating blood proteins that work together to promote immune and inflammatory responses. Their principal role is to dest

Read more on Pathology Tests Explained website

Mercury | Pathology Tests Explained

Mercury is an element that exists in three forms: as a free metallic (liquid or vapour), an inorganic compound (mercury salt), and as a variety of organic co

Read more on Pathology Tests Explained website

Chloride | Pathology Tests Explained

Chloride is an electrolyte. When combined with sodium it is mostly found in nature as ‘salt.’ Chloride is important along with sodium, in keeping normal leve

Read more on Pathology Tests Explained website

Haptoglobin | Pathology Tests Explained

Haemoglobin is a protein that transports oxygen throughout the body - necessary to sustain life. It is normally found inside red blood cells (RBCs). Very lit

Read more on Pathology Tests Explained website

Anthrax | Pathology Tests Explained

Anthrax is an infection caused by a bacterium, Bacillus anthracis. The infection can take three forms depending on the affected part of the body: cutaneous (

Read more on Pathology Tests Explained website

Healthdirect 24hr 7 days a week hotline

24 hour health advice you can count on

1800 022 222

Government Accredited with over 140 information partners

We are a government-funded service, providing quality, approved health information and advice

Australian Government, health department logo ACT Government logo New South Wales government, health department logo Northen Territory Government logo Queensland Government logo Government of South Australia, health department logo Tasmanian government logo Victorian government logo Government of Western Australia, health department logo

Healthdirect Australia acknowledges the Traditional Owners of Country throughout Australia and their continuing connection to land, sea and community. We pay our respects to the Traditional Owners and to Elders both past and present.