Tuesday February 16, 1999 - Question 11

A 3-year-old female was found eating toothpaste (Crest for Kids).  The tube was brand new (6.4 oz) before the ingestion occurred and is now about 1/2 full.  The toothpaste contains 0.243% sodium fluoride.  The child has evidence of toothpaste in her mouth and states that it tastes good. Her mother estimates her weight to be about 40 lbs.

Which of the following statements regarding the above case is correct?

A. The above child weighs about 80 kg.
 
B. One ounce of toothpaste weighs approximately 15 grams.
 
C. One mg of fluoride ion is present for every 2.2 mg of sodium fluoride.
 
D. 0.243 grams of sodium fluoride are present in every gram of the above toothpaste.
 
E. The child may have ingested 12.96 mg / kg of fluoride ion.
 

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