A Patient Is Scheduled for a Myelogram to Confirm the Presence

A patient is scheduled for a myelogram to confirm the presence of a herniated intervertebral disk. Which information obtained when admitting the patient is most important for the nurse to communicate to the health care provider before the procedure?

A) The patient has an allergy to shellfish.
B) The patient has back pain when lying flat for long periods.
C) The patient had 4 ounces of apple juice 4 hours earlier.
D) The patient is anxious about the test.