PHENYALANINE AND TYROSINE LEVEL, DBS
| Synonyms: | PHY and TY; PHE and TYE on Dried Spot Card; PHE and TYE on filter paper |
| Computer Code: | (PHYT) |
| Specimen Collection: | 5 completely saturated dried blood spots on a newborn screen spot card/filter paper. Genetic consent required (See Test Requisitions and Consents #6) |
| Minimum Volume: | 2 spots |
| Handling Instructions for Offsite Areas: | Maintain card at room temperature. Min. 2 spots. Transport specimen at room temperature. |
| Reference Values: | See reference laboratory report. |
| Lab Code: | Send Out |
| Requisition: | SPEC C |
| Test Frequency: | NA |
| Routine TAT: | 7 days |
| Stat TAT: | N/A |
| CPT Code(s): | 80500, 82136 |
| LCD or NCD: | |
| Methodology Used: |
See Addendum XVII |