The full form of WNL is Within normal limits
A “within normal limits” result means that the screen was normal for that particular disorder and no additional follow-up is required.
Note: Because newborn screening is not diagnostic testing, false negative results may occur. Should a child display symptoms of a disorder for which the screen was within normal limits, evaluate the child immediately. Newborn screening should not replace diagnostic testing in any circumstance. If the child is found to be affected, please contact us about the false negative result.
WNL
means
Within normal limits
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