Serum, lithium heparin or blood spot
umol/L
21 – 133
Neonatal Screening. Monitoring women with Phenylketonuria during pregnancy.
Referred test
7 days
Cannot be added on to an existing request
Blood Spot assayed by the Southmead Hospital, Pathology Sciences.
Serum or lithium heparin for plasma amino acids assayed by the Chemical Pathology Dept. General Hospital, Southampton.
Specimen Labelling Procedure