ALB and infection: Albumin has an important role in numerous physiological processes including maintaining colloid osmotic pressure and microvascular integrity, ligand‐binding and transport of substances, antioxidant and antithrombotic functions, and enzymatic activities.10 Low albumin in HF promotes and aggravates congestion due to reduced intravascular colloid osmotic pressures,11 increases oxidative stress,12 inflammation,10 and the susceptibility to infections.