Definition: A phlebotomised is a medical procedure where a blood sample is collected from a patient's vein using a needle. This process is often used for blood tests and other medical procedures, such as transfusions or blood transfusion reactions. In general, phlebotomisation involves the use of a syringe to draw blood from the patient's arm into a container or cup, which can then be tested for various parameters such as hemoglobin levels, platelets, and red blood cells.