How much kidney function left? Is he still passing any urine at all now?
High blood pressure, high volumn of protein in urine....and I guess your friend's protein level in his blood is lower than normal now. I'm afraid your friend has got the nephrotic syndrome. Back to 2005, his protein level of 1G/24hr was already too high. He needs to see a nephrologist immediately and start treatment straight away. A kidney biopsy could be considered.