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Pathology and Laboratory Medicine
Test Catalogue

​Lead, Hair or Nails

Chemistry

Specimen Requirements​ ​

Type​
  • ​Hair or nails
​Container
  • ​Preferred Collection Container: a plastic bag
​Collection Procedure
  • ​Nails:
    • Remove nail polishes, colors and glazes prior to collection
    • If unable to weigh the clippings, try to submit all clippings from both hands and/or feet
    • Submit in a plastic bag
  • Hair:
    • Collect hair closest to the scalp from 6 to 8 locations near the nape of the neck
    • If unable to weigh the hair, try to submit 1 to 2 heaping teaspoons (10-20 mL)
    • Submit in a plastic bag
​Required Volume
  • Nails - 0.05 g
  • Hair - 0.2 g
Grounds for Rejection​

Testing Information​ ​

Availability​
  • ​Shipped daily Monday to Friday
Testing Site​
  • ​Referred out by St. Paul’s Hospital Laboratory to Dynacare (Ontario)
Results Reporting​
  • Two weeks turn around time by testing laboratory
​Clinical Interpretation
  • ​Result interpretation should be correlated with clinical and other laboratory findings
​Additional Comments
  • ​For hair specimens bleaches, dyes and rinses may interfere
  • This test is for exposure monitoring or investigation; not for clinical diagnostic purposes
  • Blood lead analysis correlates with toxicity better
SHR LIS Test Code​
  • Nails - LEADN
  • Hair - LEADH (For Laboratory Use Only)

Patient History​ ​

​Relevant Clinical History
  • ​For hair specimens bleaches, dyes and rinses may interfere

 

​If you choose to print this information, it is valid only on date of print.

Laboratory Controlled Document LSM-689 v2

Last Modified: Friday, September 14, 2018 |
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