05-21-2007, 04:34 AM
Which one of the following statements about pediatric lead poisoning and toxicity is true?
Since 1985 the Centers for Disease Control has significantly reduced the serum lead level which it defines as potentially toxic in children
Measurement of the free erythrocyte protoporphyrin level in a capillary blood sample is presently the method of choice for screening for lead toxicity in children
Intravenous chelation therapy is presently the only FDA-approved method for treating blood levels in the toxic range
Because lead does not cross the placenta, all infants begin life with a cord blood lead level of 0 mcg/dL
Children with iron deficiency anemia are relatively protected from lead toxicity because they absorb lead from the gastrointestinal tract much less efficiently
Since 1985 the Centers for Disease Control has significantly reduced the serum lead level which it defines as potentially toxic in children
Measurement of the free erythrocyte protoporphyrin level in a capillary blood sample is presently the method of choice for screening for lead toxicity in children
Intravenous chelation therapy is presently the only FDA-approved method for treating blood levels in the toxic range
Because lead does not cross the placenta, all infants begin life with a cord blood lead level of 0 mcg/dL
Children with iron deficiency anemia are relatively protected from lead toxicity because they absorb lead from the gastrointestinal tract much less efficiently