Sam,age 42 has had a persistent proteinuria on the previous two office visits. which action is warranted next?

Sam,age 42 has had a persistent proteinuria on the previous two office visits. which action is warranted next?

1) order an intravenous pyelogram

2) admit sam to the hospital

3) schedule extensive blood work

4) have sam collect one urine specimen on first arising and then another 2 hours later