Phenylalanine by age and sex
How the usual range for phenylalanine changes with age, as labs print it.
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The usual range at every age
The reference range labs print, for each age group. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.
Use the left and right arrow keys to step through the age groups. Every range is also in the table below.
| Who | Usual range |
|---|---|
| under 0.085 | 38–137 µmol/L |
| 0.085–1 | 31–75 µmol/L |
| 2–18 | 26–91 µmol/L |
| 19+ | 35–85 µmol/L |
Sources: Mayo Clinic Laboratories, ARUP Laboratories, Genetics in Medicine (American College of Medical Genetics and Genomics), Orphanet Journal of Rare Diseases