A Nurse Is Teaching a Patient Who Works with Heavy

A nurse is teaching a patient who works with heavy metals and who is about to begin taking a chelating agent to treat heavy metal poisoning. Which statement by the patient indicates a need for further teaching?

A) "This drug will not affect any metals already bound to cells in my body."
B) "This drug will bind with the metals to form less toxic molecules."
C) "This type of drug can block the metal from binding with molecules in my body."
D) "When the drug forms a chelate with the metal, the chelate can be excreted safely."