What must be done if a blood sample tube does not fill completely?

If a blood sample tube does not fill completely, it is crucial to discard it and repeat the procedure. This is because incomplete filling can lead to inaccurate test results. Many laboratory tests require a specific volume of blood to ensure that the proper concentrations of various components are analyzed. Insufficient blood could affect the ratios of anticoagulants, additives, or preservatives in the tube, potentially skewing the test outcomes and leading to misdiagnosis or inappropriate treatment decisions. Therefore, ensuring that each sample is collected properly and meets the required specifications is essential for maintaining the integrity of laboratory testing and ensuring patient safety.