Lead – Blood and Urine Testing

Specimen Collection and Handling

Specimen Requirements

Test Requested Required Requisition(s) Specimen Type Minimum Volume Collection Kit


Whole blood1

2.0 ml

Royal blue (K2EDTA) vacutainer



5.0 ml

Sterile container

Submission and Collection Notes


Whole blood specimen should be mixed to ensure anticoagulant is effective to minimize clotting. Clotted blood will not be analyzed


Record volume collected and note if 24 hour collection on the requisition.

Preparation Prior to Transport

Label the specimen container with the patient’s full name, date of collection and one other unique identifier such as the patient’s date of birth or Health Card Number. Failure to provide this information may result in rejection or testing delay.

Special Instructions

Specimens should be stored at 2-8°C following collection and shipped to PHOL on ice packs.

Requisitions and Kit Ordering

Test Frequency and Turnaround Time (TAT)

Lead testing is performed Monday to Friday.

Turnaround time is up to 5 days from receipt at PHO laboratory


Results are reported to the ordering physician or health care provider as indicated on the requisition

Test Methods

Lead testing for blood and urine is performed by Atomic Absorption Spectrophotometry with Zeeman background correction.

Additional Information

Testing will not be performed on clotted blood.

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Laboratory Services


Updated 13 Jan 2020