What type of tube is used for the ELP Hemoglobin test?

The ELP Hemoglobin test, which is used to evaluate hemoglobin levels and assess the oxygen-carrying capacity of the blood, requires a specific type of tube for accurate results. The dark lavender tube contains EDTA, an anticoagulant that prevents blood from clotting. This is crucial for hematological tests because it ensures that the sample remains in a liquid state and allows for the accurate measurement of cellular components, including hemoglobin.

Using the dark lavender tube helps maintain the integrity of the blood sample by preventing coagulation, which is essential when analyzing blood cells and their components. The EDTA binds calcium ions, which are necessary for clot formation, thus preserving the sample for reliable testing. This is the reason the dark lavender tube is the correct choice for the ELP Hemoglobin test.