Laboratory Services

Lactate Dehydrogenase

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Updated Test Information:

Test Description
Lactate Dehydrogenase
Synonym(s)

LDH

Test ID
LDH
Performing Lab

Incyte Diagnostics

Specimen Type

Serum

Specimen Requirements

SST

Alternate Specimen Type

Red, Li-heparin plasma

Specimen Collection / Processing Instructions

SST - Separate the serum or plasma from the clot or cells promptly.

Minimum Sample Volume

1 mL

Pediatric Min. Volume (if applicable)

500 uL

Additional Processing Details

Separate the serum or plasma from the clot or cells promptly.

Stability

7 days at 15‑25 °C
4 days at 2-8 °C
6 wks at -20 °C

Unacceptable Specimen Conditions

Hemolyzed samples

Limitations

In connection with certain diseases (e.g. hepatopathy, diseases of skeletal muscle, malignant tumors), the LDH‑4 and LDH‑5 isoenzyme portions are increased and unstable in cooled and frozen samples; this may lead to an incorrect LDH value in samples collected from patients suffering from such diseases.

Methodology

UV Assay

Estimated TAT

0-2 days

Testing Schedule

Monday-Saturday

CPT Code(s)

83615

Reference Range
1 - 30 days  135 - 750 U/L
31 days - 12 months  180 - 435 U/L
1 - 4 years  160 - 370 U/L
4 - 7 years  145 - 345 U/L
7 - 10 years  143 - 290 U/L
10 - 13 years  120 - 293 U/L
13 - 16 years  110 - 283 U/L
16 - 19 years   105 - 233 U/L
Adult  0 - 250 U/L

 

LOINC Code(s)

14804-9