Medical laboratory scientists / technologists perform advanced diagnostic testing across hematology, clinical chemistry, immunology, microbiology, and transfusion medicine. They validate results, troubleshoot instruments, implement quality assurance programs, and interpret abnormal findings for clinician communication. Responsibilities include method validation, reagent management, training technicians, and ensuring regulatory compliance and accreditation standards. They often supervise laboratory sections, participate in multidisciplinary case reviews, and contribute to test menu development and workflow optimisation. Work settings include tertiary hospitals, reference laboratories, blood centres, research labs, and public health surveillance systems. Global demand is strong due to growing reliance on laboratory diagnostics, molecular testing, and personalised medicine.