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Lactate Dehydrogenase and Isoenzymes

Lactate Dehydrogenase and Isoenzymes is a topic covered in the Davis's Lab & Diagnostic Tests.

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General

Synonym/Acronym:
LDH and isos, LD, and isos.

Common Use:
To assess myocardial or skeletal muscle damage toward diagnosing disorders such as myocardial infarction or damage to brain, liver, kidneys, and skeletal muscle.

Specimen:
Serum collected in a gold-, red-, or red/gray-top tube.

Normal Findings:
(Method: Enzymatic [L to P] for lactate dehydrogenase, electrophoretic analysis for isoenzymes) Reference ranges are method dependent and may vary among laboratories.


Lactate Dehydrogenase
AgeConventional & SI Units
0–2 yr125–275 units/L
2–3 yr166–232 units/L
4–6 yr104–206 units/L
7–12 yr90–203 units/L
13–14 yr90–199 units/L
15–43 yr90–156 units/L
Greater than 43 yr90–176 units/L
LDH Fraction% of TotalFraction of Total
LDH114–260.14–0.26
LDH229–390.29–0.39
LDH320–260.2–0.26
LDH48–160.08–0.16
LDH56–160.06–0.16

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Citation

Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Lactate Dehydrogenase and Isoenzymes." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425337/all/Lactate_Dehydrogenase_and_Isoenzymes.
Bladh ML, Van Leeuwen AM. Lactate Dehydrogenase and Isoenzymes. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425337/all/Lactate_Dehydrogenase_and_Isoenzymes. Accessed April 24, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Lactate Dehydrogenase and Isoenzymes. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425337/all/Lactate_Dehydrogenase_and_Isoenzymes
Bladh ML, Van Leeuwen AM. Lactate Dehydrogenase and Isoenzymes [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 April 24]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425337/all/Lactate_Dehydrogenase_and_Isoenzymes.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Lactate Dehydrogenase and Isoenzymes ID - 425337 A1 - Bladh,Mickey Lynn, AU - Van Leeuwen,Anne M, BT - Davis's Laboratory & Diagnostic Tests UR - https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425337/all/Lactate_Dehydrogenase_and_Isoenzymes PB - F.A. Davis Company ET - 7 DB - Nursing Central DP - Unbound Medicine ER -