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HelpTest Code LDH Lactate Dehydrogenase (LD), Plasma or Serum
Additional Codes
Epic Test ID
LAB96
Performing Laboratory
Bronson Laboratory Services-Chemistry
Reference Values
|
Pediatrics |
|
0-4 days: 290-775 IU/L |
|
4-10 days: 545-2,000 IU/L |
|
10 days-24 months: 80-430 IU/L |
|
Adults: 94-250 IU/L |
Methodology
Spectrophotometric
Specimen Requirements
Submit only 1 of the following specimens:
Preferred
Specimen Type: Serum
Container/Tube: Gold top serum gel-Plain,
red-top tube is also acceptable.
Specimen Volume: 5 mL
Specimen Minimum Volume: 0.2 mL serum
Collection Instructions: Cause for
rejection includes hemolysis.
Alternate
Specimen Type: Plasma
Container/Tube: Green top (heparin)
Specimen Volume: 5 mL
Specimen Minimum Volume: 0.2 mL plasma
Collection Instructions: Cause for
rejection includes hemolysis.
Specimen Transport Temperature
Stability:
Note: Heparinized plasma in gel separator tubes is less stable than serum and is only suitable for add-on testing up to 2 days following sample collection.
LDH can be decreased upon refrigerated or frozen storage.
LDH is stable 7 Days at 15-25° C (room
temperature).
The sample may be refrigerated for 4 days at 2-8° C or 6
weeks
at -20° C. However, in connection with certain
disease
states (hepatopathy, diseases of skeletal muscles, malignant
tumors), the LDH-4 and LDH-5 isoenzyme portions are increased
and
unstable in cooled and frozen samples; this may lead to falsely
decreased values in such patients).
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
83615