Ortho-Preferred

Lactate Dehydrogenase (LDH) 45-100 U/L


- Increased: 
- Acute MI, Cardiac Surgery, Prosthetic valve, Hepatitis, Pernicious Anemia, Malignant Tumor, PE, Hemolysis (anemia or factitious), Renal infarction, Muscle Injury; 
- LDH IsoEnzymes (LDH 1-5): 
- normally ratio LDH 1/LDH 2 = 0.6-0.7; - if ratio becomes > 1, suspect a recent MI; 
- w/ Acute MI, the LDH will begin to rise at 12-48hrs 
- peak at 3-6 days, and return to normal at 8-14 days; 
- LDH 5 > LDH 4 in Liver dz



Original Text by Clifford R. Wheeless, III, MD.

Last updated by Data Trace Staff on Wednesday, September 5, 2012 8:32 pm