PHE/TYR. blood spot
Dried Blood spot
Saturated filter paper circle. Recommend 2 full circles on a Specimen Collection Card.
Allow sample to completely air dry before shipping at room temperature.
- Circle on DBS card should be fully saturated front to back with blood to be acceptable
- Follow-up for diagnosed PKU patients
- Not for newborn screening
Phenylalanine and tyrosine are proteinogenic amino acids that when elevated are consistent with PKU related disorders and tyrosinemia (Type I, II and III). Monitoring of blood concentration is important for the effective management of these metabolic disorders. Dried blood spots provide an effective mechanism for sample transport allowing collections to occur outside of a clinical setting.
- PKU related disorders
- Alternate Name/ Synonym PHE/TYR (filter paper)
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