The pre-analytics step should meet high ethical requirements of particularly sample quality as well as patient rights. Properly identifying specimens, obtaining informed consent for testing, and protecting patient privacy during specimen collection and transport are important. In the early dias the paramount task is preserving patient autonomy and not making errors that either cause the wrong diagnosis or render the treatment useless. The need to maintain ethical standards and test accuracy is just as valid in the analysis process. This involves the adherence to the specific processes and procedures of the laboratory you are assigned to, you will be required to follow, ensuring the accuracy and reliability of the substances and methods used and participate in proficiency testing and quality control measures. In this regard, for laboratory staff members, transparency regarding the test limitations and abstaining from behaviors that may compromise the trustworthiness of the test are key ethical principles. Ethics should be considered in the accompanying post-analytic phase, to maintain patient data confidentiality, reporting of the results in a timely and accurate fashion, and to provide health professionals with an accurate interpretation and orientation. It is also important to safely keep and dispose biological samples and patient records. In this last phase of the laboratory workflow, the highest possible treatment for patients can only be ensured through open communication and collaboration with doctors, which is emphasized as the ethical tasks.