D (Lactate Dehydrogenase) Isoenzymes

D (Lactate Dehydrogenase) Isoenzymes

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LD (Lactate Dehydrogenase) Isoenzymes

Fasting Required: No

Specimen: Blood

Results: 5-7 Business Days

Description:
LDH is found in many body tissues like the heart, liver, kidney, skeletal muscle, brain, blood cells, and lungs. It is used to help determine the location of tissue damage.
LDH exists in 5 forms:
•LD Fraction 1 is found primarily in heart muscle and red blood cells.
•LD Fraction 2 is concentrated in white blood cells.
•LD Fraction 3 is highest in the lung.
•LD Fraction 4 is highest in the kidney, placenta, and pancreas.
•LD Fraction 5 is highest in the liver and skeletal muscle.

This test also includes an LDH total.

Includes
LD Isoenzymes and LDH, Total

Methodology
Spectrophotometry (SP) • Electrophoresis

Clinical Significance
Lactate Dehydrogenase (LD) is an enzyme that is present in many different organs and tissues. LD Isoenzymes (LDI) are useful in distinguishing the different isoenzymes expressed differentially in tissues and organs, e.g., cardiac muscle, skeletal muscle, and liver.

Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.

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