Home
HelpTest Code LDH Lactate Dehydrogenase
Laboratory Code
LAB96
Specimen Requirements
Submit only one of the following:
Preferred
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs.
Acceptable
Specimen Type: Plasma
Container/Tube: Green Top (Li Heparin/PST)
Volume: 4.5 mL
Minimum Volume: 0.5 mL plasma
Collection Instructions: Centrifuge within 2 hrs.
Specimen Stability
| Specimen Type | Serum/Plasma |
|---|---|
| Ambient | 3 days |
| Refrigerate | 3 days |
| Frozen | 8 weeks |
Methodology
Enzymatic Assay
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Reference Interval
| Age | Male | Female |
|---|---|---|
| 0 – 14 days | 309 – 1,222 U/L | |
| 15 days – < 1 yr | 163 – 452 U/L | |
| 1 – 9 yrs | 192 – 321 U/L | |
| 10 – 14 yrs | 170 – 283 U/L | 157 – 272 U/L |
| 15 – 18 yrs | 130 – 250 U/L | |
| ≥ 19 yrs | 120 – 250 U/L | |
Note:
LDH may be falsely increased in haemolysed samples.
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Increased in megaloblastic and pernicious anaemia, extensive carcinomatosis, viral hepatitis, shock, hypoxia, extreme hyperthermia, cirrhosis, obstructive jaundice, renal diseases, skeletal muscle diseases, neoplastic diseases and congestive heart failure.
Service Code
31017
LOINC Code Information
14804-9
Update
Last updated 11/03/2025