LACTIC DEHYDROGENASE (LDH) ISOENZYMES

Components
Includes LD Isoenzyme 1, 2, 3, 4, 5, and LD Total

Specimen Required
Draw blood in a SST. Centrifuge, separate and send 2.0 mL serum (1.0 mL minimum) room temperature in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Hemolyzed specimens

Methodology
Agarose Electrophoresis, Kinetic Spectrophotometry

Stability
Room Temperature: 7 days; Refrigerated: Unacceptable; Frozen: Unacceptable

Reference Range
By report

Performed
Monday, Wednesday, Friday

Turnaround Time3-5 days
Test CodeLDHIS
CPT-4 Code (s)
83625, 83615
LOINC Codes
LD1   2536-1  
LD2   2539-5  
LD3   2542-9  
LD4   2545-2  
LD5   2548-6  
LD Total   14805-6  

Warde
Medical
Laboratory