Lactate dehydrogenase 4

ChemistryAlso known as: Ld 4Also known as: LD4U/L

Measures LDH 4, an enzyme in heart, lung, and kidney tissues.

Normal Range

120 – 240 U/L

U/L

Abnormal Levels

Consult your provider

Specimen Type

Blood

Why This Biomarker Matters

LDH 4 elevation suggests damage to heart, lungs, kidneys, or pancreas. Used alongside other tests, it helps identify which organ systems are stressed or injured.

Understanding Your Results

Normal Range

120 – 240 U/L

Overview

Lactate dehydrogenase 4 (LDH 4) is an enzyme found in the heart, lungs, kidneys, placenta, and pancreas. This isoenzyme is particularly useful for detecting damage in these organs. Elevated LDH 4 may indicate heart attack, lung disease, kidney injury, or pancreatic problems. Because LDH 4 is distributed across multiple organs, it's less specific than other markers but valuable as part of a broader enzyme panel. This test is often ordered in emergency or acute illness settings.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

2544-5Primary

Lactate dehydrogenase 4 [Enzymatic activity/volume] in Serum or Plasma by Chemical separation

U/L

2546-0

Lactate dehydrogenase 4 [Enzymatic activity/volume] in Serum or Plasma

U/L

Available Lab Tests

Order tests that measure this biomarker

Advanced Liver Health Comprehensive

$1044.34