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

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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 -