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Laboratory:

Clinical Biochemistry (SENDOUTS)

Test Name:

LEAD - (U)

Test Code: PBU

Clinical Information:

If the patient is receiving EDTA or pencillamine therapy, this should be noted on the requisition.

Test Indications: Detecting clinically significant recent lead exposure. Increased urine lead excretion rate indicates significant recent lead exposure. Measurement of urine lead excretion rate before and after chelation therapy is not recommended (Reference: American College of Medical Toxicology (ACMT 2010)). Urinary lead concentration increases exponentially with blood lead and can exhibit relatively high intra-individual variability.

Collection Devices:

Preferred Device:	1 - Urine Collection Container - 24 h Urine Collection Container - 24 h Manufacturer: VWR Scientific Products/Simport Plastics Catalogue #: CA73960-110
Alternate Device:	1 - Urine Collection 12 mL Tube Urine Collection 12 mL Tube Manufacturer: Sarstedt Canada Inc. (vendor) Catalogue #: - Random

Specimen Required:

Urine: 10.0 mL

Specimen Stability:
Ambient: 14 days
Refrigerated: 11 months
Frozen: 11 months

Referral:

Urine: 10.0 mL

Shipping & Storage: Collect and transfer 10 mL in a metal-free specimen vial. State ’24 h urine’, ’collection date’ and ’total volume’ or indicate ’Random’. Store and send refrigerated to In-Common Laboratories.
Referred Out Location: In-Common Laboratories

Requisition:

_SH Urine Testing Requisition (R250-10-95)

Reference Values:

Method of Analysis: ICP-MS

24 h Urine , In-Common Laboratories Reference Values

Random Urine , In-Common Laboratories Reference Values

Availability:

Within 2 Weeks