Hemolysis will cause falsely decreased Total Protein results. True False
The correct answer and explanation is:
The correct answer is True.
Hemolysis, which refers to the breakdown of red blood cells, can cause falsely decreased total protein results in laboratory tests. This happens because when red blood cells rupture, their contents, including hemoglobin, are released into the plasma. Hemoglobin is a protein, and when it is released into the plasma, it can interfere with the measurement of other proteins, such as albumin and globulins.
The total protein level is measured by assessing the concentration of proteins in the plasma, including both albumin and globulins. Hemolysis can lead to the presence of free hemoglobin in the plasma, which can be misinterpreted by the test as part of the total protein content. As a result, the measurement may show lower protein levels than the actual total protein concentration in the blood.
This phenomenon is particularly significant in methods like the Biuret or refractometer tests, where the presence of hemoglobin can cause interference and lead to inaccurate readings. The interference from hemoglobin may cause the instrument to detect the hemoglobin as part of the total protein, which leads to falsely low results.
In clinical practice, it is important to note that hemolyzed samples should be rejected or recollected, especially for tests that are sensitive to hemoglobin interference. Hemolysis not only affects protein measurements but can also influence other analytes, making it crucial for laboratory professionals to evaluate sample integrity before testing.
Thus, the presence of hemolysis in blood samples can result in the underestimation of total protein levels, which may affect patient diagnosis and treatment decisions.