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Uroporphyrin-1-Synthetase

Source Blood
Mnemonic U1S AND HH

OR U1S AND HHR (RRL only)

 

Specimen Requirements 2 x 4 mL dark green top sodium heparin tubes (NOT PST)
AND 1 x 4 mL lavender top EDTA tube

Protect heparin tube from light by wrapping entire tubes in foil.
Specimen Handling Do not centrifuge.  Send whole blood.

Heparin tube:
Transport whole blood on ice to DSC Referrals.  Ensure tube is wrapped in foil to protect from light. DO NOT use amber aliquot tube. DO NOT freeze; wrap the specimen to avoid direct contact with ice pack.

EDTA tube:
Deliver to CLS Hematology for hematocrit determination.

Referrals:
Record hematocrit result on HICL requisition.

 
Additional Information
Testing Location Hospitals in Common
Testing Frequency  
Alternate Name(s) Porphobilinogen deaminase

 
Reference Interval