Specimen collection is the process of gathering samples from patients for medical testing. These samples can include blood, urine, saliva, or tissue, and are essential for diagnosing diseases, monitoring health, and guiding treatment decisions. Proper collection techniques ensure the accuracy and reliability of test results. Healthcare professionals, such as nurses or laboratory technicians, typically perform specimen collection. They follow specific protocols to minimize contamination and ensure patient safety. Once collected, the specimens are labeled and sent to a laboratory for analysis, where they are examined for various conditions or infections.