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The lactate test measures the level of lactate in the blood at a given point in time. (April 4, 2013) Etiology and therapeutic approach to elevated lactate. A normal lactate level indicates that a person does not have lactic acidosis, that there is sufficient oxygen at the cellular level, and/or that their signs and symptoms are not caused by lactic acidosis. Available online at https://gov/pmc/articles/PMC3975915. Their meaning comes from comparison to reference ranges. Reference ranges are the values expected for a healthy person. By comparing your test results with reference values, you and your healthcare provider can see if any of your test results fall outside the range of expected values. Normally, the level of lactate in blood and CSF is low. Mosby's Diagnostic and Laboratory Test Reference 5th Edition: Mosby, Inc., Saint Louis, MO. Lactate is produced in excess by muscle cells, red blood cells, brain, and other tissues when there is insufficient oxygen at the cellular level or when the primary way of producing energy in the body's cells is disrupted. The principal means of producing energy within cells occurs in the mitochondria, tiny power stations inside most cells of the body. When someone is being treated for lactic acidosis or hypoxia, decreasing concentrations of lactate over time reflect a response to treatment. When someone has signs and symptoms of meningitis, significantly increased cerebrospinal fluid lactate levels suggest bacterial meningitis while normal or slightly elevated levels are more likely to be due to viral meningitis.

This test measures the amount of lactate in the blood or, less commonly, in the cerebrospinal fluid (CSF).

The mitochondria use glucose and oxygen to produce ATP (adenosine triphosphate), the body's primary source of energy. Whenever cellular oxygen levels decrease and/or the mitochondria are not functioning properly, the body must turn to less efficient energy production to metabolize glucose and produce ATP.

This is called anaerobic energy production and the primary byproduct is lactic acid, which is processed (metabolized) by the liver.

Lab Tests Online is an award-winning patient education website offering information on laboratory tests.

The content on the site, which has been reviewed by laboratory scientists and other medical professionals, provides general explanations of what results might mean for each test listed on the site, such as what a high or low value might suggest to your healthcare practitioner about your health or medical condition. Available online at Diag/GC9157GGLAC.pdf#search='Lactic acid reagent blood test.

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