Enrique and Maria Sanchez Bring Their 3-Year-Old Son,Olmedo,to the Public-Health

Enrique and Maria Sanchez bring their 3-year-old son,Olmedo,to the public-health clinic because he has been increasingly lethargic over the last 3 days.The parents tell the nurse that they have been giving him greta for a toothache.The nurse realizes that greta has high levels of

A) Lead.
B) Iron.
C) Sulfonamides.
D) Digitalis.