Absolute zero is the coldest possible temperature, at which no heat is left in a substance and its particles display no motion whatsoever. Absolute zero is equal to 0 K on the Kelvin scale, which is... Absolute zero is the coldest possible temperature, at which no heat is left in a substance and its particles display no motion whatsoever.
Serum is plasma that has been allowed to clot. It is prepared in the same way as plasma; however, the blood is collected into a tube with no anticoagulant. While spinning in the centrifuge, the clot moves with the cells to the bottom of the blood collection tube, leaving the serum on top.
A serum hemoglobin test measures the amount of free-floating hemoglobin in your blood serum. Serum is the liquid that is left over from your blood plasma when the red blood cells and the clotting elements have been removed.Hemoglobin is a type of oxygen-carrying protein found in your blood.Most of the hemoglobin in your blood is inside your red blood cells. A smaller percentage of the hemoglobin is located in your serum. This is called free hemoglobin.The serum hemoglobin test measures this free hemoglobin. Doctors usually use this test to diagnose or monitor hemolytic anemia.ost of the hemoglobin in your blood is inside your red blood cells. A smaller percentage of the hemoglobin is located in your serum. This is called free hemoglobin. The serum hemoglobin test measures this free hemoglobin. Doctors usually use this test to diagnose or monitor hemolytic anemia.