BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuLactic acid testLactate testLactic acid is mainly produced in muscle cells and red blood cells. It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low. Times when your body's oxygen level might drop include:During intense exercise When you have an infection or disease that reduces oxygen delivery to your body tissuesA test can be done to measure the amount of lactic acid in the blood. How the Test is Performed A blood sample is needed. Most of the time blood is drawn from a vein located on the inside of the elbow or the back of the hand.Drawn from a veinVenipuncture is the collection of blood from a vein. It is most often done for laboratory testing.ImageRead Article Now Book Mark Article How to Prepare for the Test DO NOT exercise for several hours before the test. Exercise can cause a temporary increase in lactic acid levels. How the Test will Feel You may feel slight pain or a sting when the needle is inserted. You may also feel some throbbing at the site after the blood is drawn. Why the Test is Performed This test is most often done to diagnose lactic acidosis.Lactic acidosisLactic acidosis refers to lactic acid build up in the bloodstream. Lactic acid is produced when oxygen levels become low in cells within the areas o...Read Article Now Book Mark Article Normal Results Normal results range from 4.5 to 19.8 milligrams per deciliter (mg/dL) (0.5 to 2.2 millimoles per liter [mmol/L]).Normal value ranges may vary slightly among different laboratories. Talk to your provider about the meaning of your specific test results.The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens. What Abnormal Results Mean Abnormal results mean that body tissues are not getting enough oxygen.Conditions that can increase lactic acid levels include:Diabetic ketoacidosis Heart failure Heart failureHeart failure is a condition in which the heart is no longer able to pump oxygen-rich blood to the rest of the body efficiently. This causes symptom...ImageRead Article Now Book Mark Article Liver disease Lung disease Medicines such as beta adrenergic agonists (albuterol, salmeterol), certain HIV medicines, metformin Not enough blood containing oxygen getting to a certain area of the body Severe infection that affects the entire body (sepsis) SepsisSepsis is an illness in which the body has a severe, inflammatory response to bacteria or other germs.ImageRead Article Now Book Mark Article Very low levels of oxygen in the blood (hypoxia) Considerations Clenching the fist or having the elastic band in place for a long time while having blood drawn can result in a false increase in lactic acid level.Open ReferencesReferencesNeligan PJ. How should acid-base disorders be diagnosed? In: Deutschman CS, Neligan PJ, eds. Evidence-Based Practice of Critical Care. 3rd ed. Philadelphia, PA: Elsevier; 2020:chap 59.Seifter JL. Acid-base disorders. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 110.Tallentire VR, MacMahon MJ. Acute medicine and critical illness. In: Ralston SH, Penman ID, Strachan MWJ, Hobson RP, eds. Davidson's Principles and Practice of Medicine. 23rd ed. Philadelphia, PA: Elsevier; 2018:chap 10.AllVideoImagesTogBlood test - illustration Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.Blood testillustrationBlood test - illustration Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.Blood testillustration Tests for Lactic acid test Lactic acid testLactate dehydrogenase testUric acid - blood Chloride test - bloodCO2 blood testRelated Information Acidosis(Condition)Metabolism(Special Topic)Muscle cramps(Symptoms)Blue discoloration of the skin(Symptoms)Aerobic(Special Topic)Anaerobic(Special Topic)Shock(Injury)Heart failure(Condition)Hepatic(Special Topic)Heart failure(In-Depth) Review Date: 5/1/2021 Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. 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