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Porphobilinogen Deaminase

Referred out for testing

Source Blood
Mnemonic U1S AND HH
Specimen Requirements

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

Specimen Handling

Do not centrifuge.  Send whole blood.

Heparin tube:
Transport whole blood on ice to DSC Referrals. DO NOT freeze; ensure tube is not in direct contact with ice pack so specimen does not freeze. Send specimen in a separate bag with a copy of the requisition.

EDTA tube:
Deliver to CLS Hematology for hematocrit determination.

Referrals:
Record hematocrit result on Dynacare requisition.

Additional Information
Testing Location Dynacare
Testing Frequency  
Alternate Name(s) Porphobilinogen Deaminase, RBC; Uroporphrinogen Synthase; Uropor Synthase
Reference Interval