You are working with urologist Paul Jones, MD, at the BSC Medical Center. Your patient, Mr. Frank Lewis, is a 67-year-old male who underwent a laparoscopic radical nephrectomy for a TNM stage II right sided renal carcinoma 2 months ago. Additional testing, including a bone scan, revealed no evidence of metastasis to the bones at that time. Over the past 2-3 days, Mr. Lewis has been complaining of increasing pain upon urination and also noticing some blood in his urine. Following examination, Dr. Jones asks you to obtain a urinalysis being sure to check for hematuria. He also orders an IVP to be done within the week. What is the purpose of obtaining a urinalysis in this case?
1) To check for the presence of bacteria in the urine
2) To measure the amount of protein in the urine
3) To assess kidney function
4) To detect the presence of blood in the urine