The total protein test measures the total amount of proteins found in the fluid portion of your blood.  Protein is the major source of building material for muscles, blood, skin, hair, nails, and the internal organs. It is necessary for the formation of many hormones, enzymes, and antibodies and may act as a source of energy. Rich dietary sources are meat, poultry, fish, eggs, milk, and cheese, which are classified as complete proteins because they contain the nine essential amino acids. Nuts and legumes, including navy beans, chickpeas, soybeans, and split peas, are also good sources but are incomplete proteins because they do not contain all the essential amino acids in adequate amounts. Proteins are necessary for your body’s growth, development, and health. Blood contains two classes of protein, albumin and globulin. Albumin proteins keep fluid from leaking out of blood vessels. Globulin proteins play an important role in your immune system. This test is often done to diagnose nutritional problems, kidney disease or liver disease. Elevated total protein indicates infection or inflammation (Such as Viral Hepatitis B or C, HIV) and low level is seen in Liver disorders, Kidney disorders and Malnutrition. It is a part of Liver Function Test. It is always advisable to go for complete profile, as level of each test in profile are considered while making decision on diagnosis as well as monitoring the treatment.