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Test Code N.LDH LDH

Important Note

Avoid hemolysis.

Methodology

Automated Chemistry Analyzer

Specimen Requirements

Serum or Plasma

Container: SST or Green top Lithium heparin

Specimen Collection: 1 mL (minimum 0.5 mL)

  1. Allow specimen to clot completely if a serum tube (SST) was used. Separate serum (SST) or plasma (Lithium Heparin) from cells within 24 hours and transport refrigerated. If red top tube is collected, separate serum from cells within 2 hours and place in separate plastic tube immediately.
  2. Properly label tube with patient's name, DOB, requisition number and type of tube sample drawn i.e. GREEN.

Specimen Transport/Stability

Refrigerated: 24 hours on gel, 4 days poured off

Specimen Rejection

1. Exceeding stability requirements

2. Unlabeled specimen

Maximum Laboratory Time

24 - 48 hours

Reference Ranges

LDH                   IU/L  
Newborn           40 - 350
4 days         150 - 360
6 yrs         150 - 300
9 yrs         130 - 300
13 yrs         130 - 280
15 yrs         130 - 230

 

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

83615