Dear Madam,
Fluid retention in the lungs - the term used by your doctors is usually a layman's term for pulmonary oedema
Now there can be several reasons for the same, the commonest being Left ventricular failure. Since, you have not provided any other details as such I will not assume anything to go forward.
You have mentioned, that your pt is already on meds, yet he is finding it difficult to sleep and food intake is going down - easiest thing to guess is- he is getting cardiac cachexia - due to fluid retention in the walls of the intestines.
One thing can help, is reducing the fluid intake to a limit as advised by your doctors and reducing salt intake to 2 gm per day.
Other options - reapproach your cardiologist ask him to look up at
thyroid and renal function, if not done yet.
If the doctors are sure this fluid in lungs is due to cardiac condition only then there can be a chance to discuss upon the utility of some pacemaker devices called CRT. Also if medicines are not helping may be a night BiPap machine might help, a pulmonologist can help.
In regards to your question based upon the pulmonologist requirement - obviously at some point of time he will need but only after the cardiologist certifies that pts heart is working at the most optimised level.
There are scores of other possibilities and all this explanation I gave might not be useful, but it is true in commonly most cases.
Regards
Next Steps
So, have a detailed discussion with your cardiology doc...
Health Tips
restrict water and salt