Published: 3 Dec 2024

The difference in the proportion of various vital metabolites and constituents in the blood help in identifying the presence of various ailments of the body.
Blood tests are mainly used to determine physiological and biochemical states, such as disease, mineral content, drug effectiveness, and organ function. It is therefore important that the reports of the blood test and the lab test results are properly understood by the patient so that he/she has a clear understanding of the ailment of the body.The analysis is usually performed by comparing the amount of various chemical entities present in the blood under test to the standard ratio of one or more chemical entities that are actually supposed to be present in the blood. This sample is usually extracted from a vein in the arm using a needle or via a finger-prick. Blood test is an important laboratory analysis performed on a blood sample. The regulation of the internal body temperature despite the changes in the outside atmosphere is particularly important in the warm blooded animals. Differences in the quantities and proportions are determined. It also performs many regulatory functions like the regulation of body pH of the body and also the regulation of core body temperature. Other than this the blood being the only liquid majorly circulating in the body also performs the important hydraulic functions. Presence of various harmful chemicals, poison and even drugs can be determined through the blood test. They also help in determining the presence of pathogens in the body.

Some essential elements, such as selenium, are portioned in and have important physiological roles in both the intracellular and extracellular compartments. Intracellular elements have very specific functions as obligatory constituents of metalloproteins/enzymes in red blood cells and lymphocytes. Your blood may offer many clues about your heart health. Therefore, measurement of elements in both blood compartments permits a more complete evaluation of total blood element levels.The most important risk factors for heart disease are smoking, high blood pressure, high cholesterol and diabetes.
Whole blood analysis is an excellent test for measuring the levels of both intracellular and extracellular circulating elements. And other substances in your blood can help your health care provider determine if you have heart failure or are at risk of developing fatty deposits (plaques) in your arteries (atherosclerosis).
It's important to remember that one blood test alone doesn't determine the risk of heart disease. Likewise, the toxic metal lead is transported in both the fluid and cellular (red blood cells) compartments of blood. Extracellular elements have functions in serum/plasma or are transported to tissues in serum/plasma associated with specific proteins or albumen. The red and white blood cells serve as surrogate cells representative of peripheral cells in general. For example, high levels of "bad" cholesterol in your blood can be a sign that you're at increased risk of having a heart attack.