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Date of last update: 10/17/2017.

Forum Name: Endocrinology Topics

Question: Latic acid?

 mulder5447 - Tue Jan 24, 2006 11:59 pm

Hi, I have no clue where I should post this question, but here goes.

I had headaches awhile ago, and I had blood tests done. CBC and electrolytes and what not. I had high triglycerides and lactate dehydrogenase levels. The LDH was around 320 and i cant remember the other one, but a retest 3 weeks later proved normal levels. I could feel the acid build up, just walking up the stairs or getting up felt like I had been working out my legs for hours. No 2 months later, i can feel the "burning" sensation again, and its been like this for almost a week. Im not an overly active person but I get around everyday. Im 6'1" 200lbs My doctor said the LDH is nothing to worry about.... but why do i get this "burning" feeling in my muscles and what could be going on?
 Dr. Safaa Mahmoud - Sun Feb 04, 2007 6:33 pm

User avatar Hello,

High LDH is an indicator of tissue damage.

Exercising muscles normally convert glucose to lactate which is cleaned from he blood when taken up by the liver.

Normal values may range from 105-333 IU/L (international units per liter).
common causes to elevate LDH include:
-Cerebrovascular accident (CVA, stroke) ,
-Cardiac ischemia
-Muscle injury, etc

Your LDH although within the normal range is in the high normal level, thus it should be repeated and followed up, especially if you have symptoms.

Having muscle pain and headache on walking suggest ischemia and Doppler US or duplex over the carotids and on the peripheral blood vessels is recommended to exclude cerebrovascular or peripheral ischemia.

Follow up with your Doctor is essential.
Best regards.

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