The nurse is reviewing the patient's medical record to determine if there are any factors present that can cause a false-positive result for occult blood testing. The nurse would be correct to identify which of the following? (Select all that apply.)
A. Red meats, poultry, fish.
B. Iron supplement..
C. Spinach, collard greens.
D. Antacids (e.g., Amphojel, Maalox, Milk of Magnesia).
E. Anticoagulants (e.g., warfarin sodium, heparin).