A child is born with cretinism. What element was lacking in the mother's diet during pregnancy?
A) Potassium
B) Iodine
C) Sodium
D) Magnesium
B
Feedback:
Cretinism is uncommon in the United States but may occur with a lack of iodine in the mother's diet. A lack of potassium, sodium, and magnesium in the mother's diet will not cause cretinism.
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