Lactate Dehydrogenase (LD), Plasma or Serum

Test Code

Alias/See Also

CPT Codes

Preferred Specimen
In-patient: 1 mL plasma from Green top (Lithium Heparin)
Out-patient: 1 mL serum from SST

Minimum Volume
0.5 mL
Note: For neonate requirements see Neonate Minimum Blood Volumes

Other Acceptable Specimens
1 mL serum from SST or Red Top

Specimen Stability
Specimen Type Temperature Time
Plasma Li Hep Refrigerated 48 hours
Serum SST Refrigerated 48 hours
Red Top – Separated* Refrigerated 48 hours
*Centrifuge and aliquot into a plastic vial.

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Mild hemolysis

Oxidative Bichromatic Rate

Setup Schedule
Monday through Sunday; Continuously

Report Available
Same day

Reference Range
0 - 20 days: 225 - 600 IU/L
20 days - 15 years: 120 - 300 IU/L
15 - 150 years: 135 - 225 IU/L

0 - 20 days: 225 - 600 IU/L
20 days - 15 years: 120 - 300 IU/L
15 - 150 years: 135 - 214 IU/L

Performing Laboratory
McKee Medical Center Laboratory
North Colorado Medical Center Laboratory
Banner Fort Collins Medical Center
Sterling Regional Medical Center
Ogallala Community Hospital

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.