When Preparing a Patient for an Intravenous Pyelogram (IVP), the Nurse

When preparing a patient for an intravenous pyelogram (IVP) , the nurse reviews diagnostic data, noting all of the following. Which of these findings requires notification of the physician before proceeding with the test?

A) blood urea nitrogen (BUN) 55 mg/dLdl
B) serum creatinine 1.3 mg/dL
C) urine culture <10,000 organisms/mL
D) residual urine of 80 mL