What all investigations are to be done in a 27 year old man with 4+ proteinuria? dr.vishnu gp

Proteinuria: The first thing is to have a 24 hour urine collection to see the amount of protein in the urine and to assess the kidney function of the patient. I would also do a renal ultrasound to assess the size of the kidneys. Depending on the amount of proteinuria, i would send off blood for aso, anca 2, complement C3 and c4, hiv, hepatitis b antibodies, hb a1c and ana. A renal biopsy may be needed.