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01 Topic Focus · Pathology
Pathology · The laboratory behind your results

The laboratory, explained.

Nearly every diagnosis starts with a sample: blood, urine, a swab or tissue. Pathology is the medical science that studies those samples. This guide explains what a pathologist does, the main groups of tests, how your sample travels through the laboratory, and how to read a results report.

Plain-language guide Every test group mapped RCPA aligned Accredited laboratories
The test groups Open the pathology handbook
Specialist A pathologist signs every report
Share About 70% of medical decisions involve pathology
Standard RCPA Manual aligned

4groups

biochemistry, haematology, microbiology and anatomical pathology

70%

of medical decisions are influenced by pathology results

1pathway

from collection, to laboratory, to the report your doctor reads

24hwindow

many routine blood results land within a day
Why this guide exists

Behind almost every diagnosis, there is a laboratory result.

Tricorian Life
02 The Basics
The four test groups

Four branches, one laboratory.

Pathology covers everything from a cholesterol check to a cancer diagnosis. The field divides into four main branches, each with its own scientists and its own questions.

Biochemistry

The chemistry of your blood and body fluids. Liver and kidney function, cholesterol, hormones, blood glucose and electrolytes all live here.

Haematology

The study of blood itself: red cells, white cells, platelets and clotting. A full blood countFull blood countA routine test measuring your red cells, white cells and platelets. It is the most commonly ordered pathology test in Australia. is its everyday workhorse.

Microbiology

Finds the bugs: bacteria, viruses, fungi and parasites. CulturesCultureGrowing a sample in the laboratory to identify the germ causing an infection, and to find which antibiotics will work against it. and sensitivity testing tell doctors which antibiotic will actually work.

Anatomical pathology

The study of tissue. Biopsies, surgical specimens and cells are examined under the microscope, and most cancer diagnoses are confirmed here by a histopathologistHistopathologistA pathologist who diagnoses disease by examining tissue under a microscope. The cancer diagnosis in your report is signed by one..

Genetic pathology

Testing genes and chromosomes for inherited conditions and tumour changes. It connects directly to our Genetics guide, including tumour profiling for cancer.

Reference ranges, not grades

Results are compared to a reference rangeReference rangeThe interval of results seen in most healthy people. A result outside it is a flag to interpret, not a verdict by itself., the interval seen in healthy people. Slightly outside is common and not automatically a problem. Our handbook walks through the most common tests.

03 Your Journey
From your arm to your doctor

The life of a single sample.

Every result you have ever received followed the same careful route. Each step exists to keep your sample identifiable, your test accurate, and your result trustworthy.

01

Request

Your GP or specialist orders a test with a specific clinical question in mind.

02

Collection

A pathology collector takes blood, or you provide urine or a swab. Each sample is labelled with your details, twice-checked.

03

Analysis

The sample runs through analysers in the laboratory, overseen by scientists and quality systems.

04

Interpretation

A pathologistPathologistA specialist doctor who studies disease through laboratory science, interprets your results, and signs the report your doctor reads. reviews the results, adds clinical interpretation, and signs the report.

05

Action

Your doctor receives the report, explains it in the context of your health, and decides the next step with you.

04 Who You Will Meet
The laboratory team

The people who read your sample.

Most of the laboratory team works behind closed doors. These are the roles behind your report.

Pathologist

A specialist doctor who interprets results and signs the report. For tissue samples, this is the doctor who makes the diagnosis itself.

Pathology collector

The friendly professional who takes your blood at the collection centre. Trained in safe, gentle collection and correct labelling.

Medical scientists

Run the analysers, validate the quality of every result, and investigate anything unusual before a report leaves the laboratory.

Your doctor

The clinician who ordered the test. They own the clinical question, receive the report, and translate it into the next step of your care.

05 Beyond the Basics
Quality, access and costs

The system behind every result.

Australia's pathology system is one of the most regulated in the world. Here is what protects your results, and how much of it costs you.

Quality

Accreditation everywhere

Australian laboratories are accredited against national standards, participate in external quality programs, and answer to the RCPA. Your sample is tracked from collection to result.

Cost

Mostly bulk billed

Most routine pathology ordered by a doctor is bulk billed, so there is nothing to pay. A few specialised or wellness tests carry a gap. Ask the collection centre if unsure.

Records

Results, safely stored

Laboratories keep results for years, so your history is available for comparison. Many results also flow into My Health Record if you have opted in.

Continue your journey

Pathology handbook Radiology Genetics Hospitals Glossary
06 Sources

Where this guide draws from.

07 Common Questions
Frequently asked

What patients ask about the laboratory.

Why does my doctor order blood tests when I feel fine?

Pathology catches problems before symptoms appear: rising cholesterol, early diabetes, declining kidney function, iron deficiency. Prevention and monitoring are two of its most powerful uses.

What does it mean if my result is outside the reference range?

Reference ranges describe where most healthy people sit, so a small number of healthy people naturally fall outside. One slightly abnormal result is usually a flag to interpret, not a diagnosis. Your doctor weighs it against your symptoms, history and other results.

Do I need to fast before blood tests?

Some tests, like fasting glucose and certain lipid profiles, need an overnight fast. Many do not. Your doctor or the collection centre will tell you exactly what is needed for your specific tests.

How long until my results come back?

Routine blood tests often land within a day. Cultures can take days because bacteria need time to grow. Tissue samples can take several days to a week or more, because they involve processing, sectioning and expert review.

Who can see my pathology results?

Your results are confidential health information, shared with the clinicians involved in your care. If you use My Health Record, results may appear there too. Australian privacy law governs how they can be used.

Will pathology cost me anything?

Most pathology requested by a doctor is bulk billed, meaning no out-of-pocket cost. A few specialised or screening tests have a gap. The collection centre can confirm before your test.

What is the difference between a blood test and a biopsy?

A blood test measures what circulates in your bloodstream. A biopsy removes a small piece of tissue so a histopathologist can study its structure under the microscope. Biopsies confirm most cancer diagnoses.

Questions answered

Questions about pathology?

If you need guidance on understanding a pathology report, choosing between tests, or knowing what to ask your doctor next, reach out and our team will help. We respond within 24 hours.

Talk to our team