blood serum

Blood serum is the clear, straw-colored liquid that remains after blood has clotted and the cells and clotting factors are removed. It contains essential components like electrolytes, nutrients, hormones, and waste products, playing a key role in transporting substances throughout the body and helping maintain balance in the blood's environment. Serum is often used in medical tests to assess health, diagnose diseases, and monitor treatments, providing important information about your body's physiological state without the cells or clotting proteins present.