What Should the Nurse Do to Prepare a Patient for an Oral

What should the nurse do to prepare a patient for an oral cholecystography?

A) Ensure that the patient drinks 500 mL of water before testing
B) Give 4 Oragrafin (ipodate) 5 minutes apart starting at 6 AM
C) Administer 6 Telepaque (iopanoic acid) tablets 5 minutes apart after the evening meal
D) Give a fatty meal $\frac { 1 } { 2 }$ hour before the test is started