The 'World's Longest Marathon' Includes Running Through Bordeaux Vineyards and Tasting Wine Along the Way. Every year in Bordeaux, runners in the worldâs longest and without doubt most bizarre marathon take to the road. Simply put, the Marathon du Medoc gives hydration a whole new meaning. Instead of athletic gear, runners wear carnival-themed outfits â the more extravagant the better.
May 8, 2013. LDH is the short form for the Lactate Dehydrogenase test. This test is typically used as a measure of tissue damage in an individual. It may be used to measure acute tissue damage, which has occurred due to a recent illness or injury.
You may also have a lactate dehydrogenase isoenzyme test. Your total LDH is made up of 5 isoenzymes numbered LDH-1 through LDH-5. The concentration of each isoenzyme depends on the tissue. For example, LDH-1 and LDH-2 are found mainly in heart tissue. LDH-5 is found mostly in the liver. A higher than normal total LDH means possible tissue damage. Your healthcare provider might order a lactate dehydrogenase isoenzyme test to find out which tissue is damaged or diseased.