Today the assessment intravascular volume status is already a part of existing guidelines in the treatment of heart failure but is often not based on quantitative measurements but rather on estimates based on physical exam techniques of patients.
The American College of Cardiology guidelines recommend that volume status should be asses at each patient encounter with adjustment of HF therapy as appropriate. (link)
The Danish Cardiological Society guidelines on acute heart failure state that initial treatment depends on volume status and perfusion. Guidelines note that objective signs of fluid overload can be missing from patients, especially among young people.(Danish link)
The Danish Cardiological Society guidelines on chronic heart failure recommends diuretics to be used with all patients with signs of fluid retention. (Danish link)
European Society of Cardiology guidelines state that Doses of diuretics might need to be adjusted according to volume status. Guidelines also addresses needs to identify anaemia, congestion and volume overload in general with acute or chronic heart failure patients. (link)