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Specimen Collection Manual and Test Catalog

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LD

Geisinger Epic Procedure Code:  LAB2591    Geisinger Epic ID:  14369

SPECIMEN COLLECTION
Specimen type: 

Plasma or serum


Preferred collection container: 
Specimen required: 

1 mL of serum or plasma; minimum 0.2 mL.



SPECIMEN PROCESSING
Processing instructions: 

Allow serum to clot. Centrifuge to separate serum or plasma within 2 hours of collection.


Transport temperature: 

Refrigerated (preferred). Room temperature or frozen specimen also acceptable.


Specimen stability: 

Plasma (PST): Room temperature or refrigerated: 4 hours. 
Serum (SST): Room temperature: 7 days. Refrigerated: 4 days. Frozen: 6 weeks.


Rejection criteria: 

Stability limits exceeded.



TEST DETAILS
Reference interval: 

0- < 1 yr: <438 
1 yr - <4 yr: <338 U/L
4 yr - <7 yr: <314 U/L
7 yr - < 13 yr: <307 U/L
13 yr - < 18 yr Male: <304 U/L
13 yr - < 18 yr Female: < 271 U/L
> 18 yr: <=250 U/L


CPT code(s):  83615
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Methodology: 
Enzymatic
Synonyms: 

Lactate Dehydrogenase, LDH, LD


Clinical significance: 

Elevations in serum lactate dehydrogenase occur from myocardial infarction, liver disease, pernicious and megaloblastic anemia, pulmonary emboli and muscular dystrophy.


Doctoral Director(s): 
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Review Date:  12/27/2024

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