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Test Code LAB96 Lactate Dehydrogenase (LDH), Plasma or Serum

Additional Codes


Reporting Title



Roche Diagnostics, Enzymatic - RMH, GMC, DH, DMH, DHC

Siemens Diagnostics- MGH, HMH, OMH, MH, SH

LDH is present in many tissues, especially heart, liver, muscle, and kidneys. LDH is elevated with megaloblastic anemia, disseminated carcinoma, shock, muscular disorders, nephrotic syndrome, cirrhosis, myocardial infarction, and many other conditions.

Performing Laboratory

OhioHealth Laboratory Services-RMH, GMC, DH, DMH, MGH, HMH, OMH, MH, SH Core Laboratories

Specimen Requirements

Submit only 1 of the following specimens:




Draw blood in a gold-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated.

1. A speckled-top serum gel tube (s) or a plain, red-top tube(s) is also acceptable.

2. Indicate serum on request form.

3. Label specimen appropriately (serum).


Alternate: Preferred for Siemens Users


Draw blood in a mint green-top (heparin) gel tube(s). Spin down and send 1 mL of heparinized plasma refrigerated.

Note:  1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).


Specimen Stability Information

Specimen Type Temperature Time
Serum or plasma Refrigerated 4 days
  Ambient  7 days
  Frozen  6 weeks


Specimen Transport Temperature

Refrigerate/Ambient OK/Frozen NO

Reference Values

0-4 days:  290-775 U/L

5-10 days:  545-2,000 U/L

11 days-24 months:  180-430 U/L

25 months-12 years:  110-295 U/L

>13 years:  100-250 U/L

Day(s) Test Set Up

Monday through Sunday; Continuously

Test Classification and CPT Coding