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Lactate Dehydrogenase (LD) Isoenzymes, Serum

Performing Laboratory

Charleston Area Medical Center, Inc.

Methodology

Electrophoresis

Includes LD1; LD2; LD3; LD4; LD5; and LD, total.

Specimen Requirements

Draw blood in a plain, red-top tube or a serum gel tube. Spin down and send 4 mL of serum refrigerated.

Reference Values

TOTAL
Males
0-1 month:  163-881 U/L
1 month-2 years:  130-437 U/L
>2-10 years:  141-337 U/L
>10-18 years:  86-271 U/L
>18 years:  118-273 U/L
Females
0-1 month:  163-881 U/L
>1 month-2 years:  130-437 U/L
>2-10 years:  141-337 U/L
>10-18 years:  86-271 U/L
>18 years:  122-220 U/L
ISOENZYMES
I:  18-33%
II:  28-40%
III:  15-30%
IV:  5-16%
V:  2-13%

Day(s) Test Set Up

Monday through Friday

Test Classification and CPT Coding

83615-LD, total

83625-LD isoenzymes