What Is H-FABP (Heart Fatty Acid-Binding Protein)?

What it is

H-FABP is a small cytoplasmic protein abundant in heart muscle, released early after myocardial injury.

Why it matters

Used as an early cardiac marker in some panels, alongside troponin.

Specimen

Whole blood / serum / plasma

Interpretation

Elevated = early myocardial injury.

Limitations

Used as an early marker alongside troponin; not standalone.

Related test: H-FABP Rapid Test — specimen: WB / S / P