A Patient Is Scheduled for a Schilling Test to Determine

A patient is scheduled for a Schilling test to determine the cause of vitamin B₁₂ deficiency. What information should the nurse provide when preparing the patient for this test?. Select all that apply.

A) "The Schilling test will help to determine if you have a problem absorbing vitamin B₁₂."
B) "You will be given an oral dose of radioactive vitamin B₁₂ for part of this test."
C) "You will need to collect your urine for 6 hours after the test."
D) "You will be given a parenteral dose of vitamin B₁₂ for part of this test."
E) "Gastric endoscopy is included in this test."