Medical scientist

Transcript for Diagnosing leukaemia and the role of medical scientists

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>> Jeremy : Hi, my name is Jeremy. I’m a medical laboratory scientist here at Pathology Queensland at the Townsville Hospital. As soon as I ran Louise’s samples and analysed them, I could tell this was going to be urgent and that there was going to be a problem because the sample had flagged. Analyser‑flagged samples indicate the results are abnormal—whether the white cell count is elevated or there may be blasts present. The analyser can only give us an indication. From there, I made a film so that one of our scientists could review it with our supervisor to see what we were dealing with.

>> Anna : Hi, my name is Anna. I’m another medical laboratory scientist at Pathology Queensland at the Townsville Hospital. All significant films are reviewed by scientists, and a report is prepared for the requesting doctor and the haematologist. Louise’s film was significant as it contained blasts—immature white blood cells. These are a feature of leukaemia and, when present in high numbers, can indicate the severity of the disease. In Louise’s case, the levels were dangerous and required urgent attention from the haematologist.

>> Jeremy : After reviewing the film, the haematologist ordered a bone marrow investigation and flow cytometry. These tests help determine the specific type of leukaemia—whether myeloid or lymphoid. From this, the best course of treatment can be determined, and a prognosis provided. Afterwards, we perform daily full blood counts and film reviews to monitor the patient’s treatment and see how they are responding.

>> Alee : Hi, I’m Alee, a scientist specialising in flow cytometry at Pathology Queensland. We received a sample of Louise’s blood for flow cytometry. Flow cytometry helps diagnose the type of leukaemia by detecting markers on the outside of white blood cells. This information gives clinicians an idea of which cytotoxic drugs will work against Louise’s leukaemia.

>> Carol : Hi, I’m Carol. I’m a scientist who works in the transfusion medicine department. I provide compatible blood for patients like Louise who are undergoing chemotherapy. Cytotoxic drugs destroy a patient’s bone marrow, meaning they cannot manufacture their own red or white cells. During this crucial time, we replace these cells with donor products—compatible red cells, platelets, and plasma. Louise may also require irradiated blood products to prevent transfusion‑associated graft‑versus‑host disease. Thank you to everyone who donates blood. Because of you, patients like Louise can receive life‑saving treatment. We match the donor cells with Louise’s to make sure her body does not reject them.

>> Zola : Hi, I’m Zola. My primary role is to look after point‑of‑care analysers for the laboratory and the hospital. Point‑of‑care testing means the analyser is brought to the patient’s bedside, producing results in as little as three minutes—critical in life‑threatening situations. Every day I maintain point‑of‑care and blood gas analysers across the entire hospital to ensure accurate results. I support Emergency, ICU, Theatres, Neonatal ICU, Coronary Care, the Cardiac Cath Lab, Birth Suite, and Maternity. I also provide quality control and supplies to our regional hospitals and deliver training to staff members who use these analysers.

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