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You will have had a blood test that would have diagnosed that shortly after your birth. If you want to test that, go eat a couple packs of Equal sweetener...if you get deathly ill, you probably have PKU.

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13y ago
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14y ago

PKU is diagnosed by the results of the newborn screening test done in the hospital when your child is only one day old.

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Q: How do you test for phenylketonuria?
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