Lactate Dehydrogenase
LD, LDH
Testing Information
Sample Type
Serum
Test Codes
630270
CPT Code
83615
Testing Area
Core Lab - Chemistry
Test Methodology
Abbott Alinity - Spectrophotometry and Enzymatic
Reference Range
Female, 0-30 days: 145-765 U/LFemale, 31 days-12 months: 190-420 U/LFemale, 13 months-3 years: 165-395 U/LFemale, 4-6 years: 135-345 U/LFemale, 7-9 years: 140-280 U/LFemale, 10-12 years: 120-260 U/LFemale, 13-15 years: 100-275 U/LFemale, 16-18 years: 105-230 U/LFemale, >18 years: 100-240 U/LMale, 0-30 days: 125-735 U/LMale, 31 days-12 months: 170-450 U/LMale, 13 months-3 years: 155-345 U/LMale, 4-6 years: 155-345 U/LMale, 7-9 years: 145-300 U/LMale, 10-12 years: 120-325 U/LMale, 13-15 years: 120-290 U/LMale, 16-18 years: 105-235 U/LMale, >18 years: 100-240 U/L
Expected Turnaround Time
Results Available 24 hours from Receipt
Specimen Collection Criteria
Collect one gold top SST tube (minimum whole blood: 4 mL). Let specimen clot for 30-60 minutes and then centrifuge to separate serum from cells. Refrigerate after centrifugation.
Rejection Criteria
Grossly hemolyzed specimens, quantity not sufficient, improperly labeled
Specimen Validity and Retention
Centrifuged SST Tubes:Room Temperature (20-25°C): 2-4 hoursRefrigerated (2-8°C): 48 hoursFrozen (-20°C or greater): UnacceptableSerum Aliquots:Room Temperature (20-25°C): 2-4 hoursRefrigerated (2-8°C): 7 daysFrozen (-20°C or greater): 7 daysSpecimens retained for 7 days after testing
Courier Transportation
Transport centrifuged tube refrigerated (2-8°C)
Clinical Utility
Lactate Dehydrogenase is increased in numerous disease states including in-vivo hemolysis, hematological disorders, myocardial infarction, pulmonary and renal infarction, liver disease, and bone disease.
