Complete Blood Count


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What is this test?

The Complete Blood Count (CBC) is a group of tests performed on a single blood sample that tell us about the different kinds of cells in the blood (red blood cells, white blood cells and platelets).

A Complete Blood Count gives you an overall view of your health.

The test includes:

Red blood cells (RBC)
Red blood cells carry oxygen around your body. The test measures red blood cell numbers, size and how much haemoglobin they contain. This can show if you don’t have enough iron or certain vitamins that are needed to make haemoglobin which takes oxygen to your tissues (anaemia).

White blood cells (WBC)
White blood cells fight infection and play a role in immune responses such as inflammation and allergies.
Looking at the various different types of white cells is called a WBC Differential. Each cell type has its own job to do in fighting infection. Some mainly fight against bacteria, others are involved in allergic responses, while others produce antibodies, especially against viruses. Increased numbers of certain WBCs can help to pinpoint if an infection is caused by a bacteria or virus.

Platelets, which are important in blood clotting.
Low numbers of platelets can lead to excessive bruising or bleeding.

To learn more about this test click here.

What do I need to do before this test

Preparing for this test

No 1 Choose and purchase online icon

Choose and purchase your test online

No 2 Print your form icon

Print your request form

No 3 Visit collection centre icon

Visit any of our collection centres to have your test

No 4 Recieve results icon

Receive your results


Yes, you can request any of the test listed on our website without a medical referral if you are aged 16 years or over. For any medical advice regarding these tests, please consult your health provider

We will email your results to you. Results sent by email are password protected. Your password will be emailed to you.Use the password to open the file emailed to you. Your results will be emailed to you and in most cases will be available within 7 days.

No, but we may seek your authorisation to do so if your results are significantly abnormal.

We only offer a defined range of tests for self-requests. For all other tests, please see your healthcare provider to order a test for you. They will be able to determine its clinical relevance to your specific situation.

You need to consult your healthcare provider if you require interpretive advice.

MyTests is a service provided by Awanui and its New Zealand-wide laboratory network. Your blood sample and information stay in New Zealand.

Awanui laboratories include Labtests, Wellington SCL, Northland Pathology, Southern Community Labs, Medlab South, Hamilton SCL, and Taranaki Pathology Services.

Our laboratories hold accreditation against ISO 15189:2012 as a medical testing laboratory service.

Each test is priced differently depending on what type of test it is. All tests also require a collection fee to collect the sample, or to provide you a sample collection container. This fee is charged once at the final checkout stage.

Most blood tests don’t require any special preparation.

Some tests require an appointment or simple advance preparation. If special preparation is required, for example, fasting before your test, it will be included on the information specific to the test.

Find a collection centre

Visit any of our 150 collection centres located throughout New Zealand.

You don’t need to book in to receive your test, but in specific locations you are able to make a booking to ensure you’re seen at the time you arrive.