How to get your lactate dehydrogenase tested

Order lactate dehydrogenase (LD/LDH/lactic-acid-dehydrogenase) blood testing online

In the majority of US states you can order lactate dehydrogenase testing online and have the blood drawn at a local blood draw center (see my general overview of the process).

I'd suggest ordering from DirectLabs because they have the cheapest price I know of ($29), and I've been happy with their service. You can also compare the other 6 lactate dehydrogenase test providers I've found.

Take a look at my state-specific issues page if you're in AZ, MD, NJ, NY or RI.

Additional testing to determine isoenzymes

I won't pretend to understand when you'd want to test for particular isoenzymes (LD-1 through LD-5), but here's the providers I found for that:

Understanding the results

The American Association for Clinical Chemistry has helpful pages for understanding the test and answering common questions.

Body organ cartoon characters with YouTube play button

If you're interested in self-testing as I am, you might enjoy my explainer videos and my Facebook / Twitter.


Please leave a comment if you see a way to improve this page or if you have any questions. Keep in mind that I know little about the medical side of bloodwork, I just enjoy making sites with lists of things.

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