Can u pls make it clear the age of your friend and some reports..like Complete urine examination and 24 hour urine estimation. We have to look into these two entities to label it as Nephrotic syndrome... Once we have made this diagnosis ..it s just a syndrome ..many diseases present this way...so the next step is to find the cause of Nephrotic syndrome through renal biopsy. Renal biopsy alone will help in making absolute diagnosis and help in specific management. of course diuretics may still be used , albumin infusion may be necessary even after that but making correct diagnosis like MEMBRANOUS NEPHROPATHY , MCD , FSGS will help in prognosticating and starting of specific management options like steroids and immunosuppressants. My advice is to have a consultation with nephrologists. Renal biopsy should be done if kidneys are of normal size.