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Lactate Dehydrogenase (LD), Plasma or Serum

Performing Laboratory

Charleston Area Medical Center, Inc.

Methodology

Enzymatic

Useful for differential diagnosis of cardiac and liver disorders.

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma

Draw blood in a green-top (lithium heparin) tube. Spin down and send 4 mL (pediatric: 2 mL) of lithium heparin plasma. Avoid hemolysis or lipemia.

Note: 1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

 

Serum

Draw blood in a plain, red-top tube or a serum gel tube. Spin down and send 4 mL (pediatric: 2 mL) of serum. Avoid hemolysis or lipemia.

Note: 1. Indicate serum on request form.

2. Label specimen appropriately (serum).

Do not refrigerate or freeze.  LDH is stable 3 days at room temperature (20-25°C)

Reference Values

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: 87-241 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: 84-246 U/L

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

83615