If you have abnormal globulin levels, another test called serum protein electrophoresis is often done. This test measures specific groups of proteins in the blood. To learn more, see the topic Serum Protein Electrophoresis.
Damaged liver cells lose their ability to make protein. But previously produced protein may stay in the blood for 12 to 18 days, so it takes about 2 weeks for damage to the liver to show up as decreased serum protein levels. The liver's ability to make protein may be used to predict the course of certain liver diseases.
Unlike carbohydrates and fats, proteins are not stored in the body. They are continuously broken down (metabolized) into amino acids that can be used to make new proteins, hormones, enzymes, and other compounds needed by the body.
Protein also can be measured in the urine. To learn more, see the topic Urine Test.
Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.
Other Works Consulted
Chernecky CC, Berger BJ (2013). Laboratory Tests and Diagnostic Procedures, 6th ed. St. Louis: Saunders.
Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby.