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Laboratory Test Directory

Lead, Filter Card


Name Method Department Units
Filter Paper Lead Inductively coupled plasma/ mass spectrometry
Core Lab, Metals ug/dL

Specimen Requirements

Whole blood

Container Type Container Size Specimen Volume

Blood filter paper card


Room temperature - 6 month(s)

Reasons for Rejection

  • Inadequate filling of circles on filter paper card
  • Blood not soaked through paper
  • Blood spots grossly soaked through onto cover


Analysis for screening only- See patient report. Puncture site must be very clean so specimen does not get contaminated with lead. Adequate sample requires complete filling of at least 2 card circles. Outpatient specimen transport: Mail filter paper cards to the Laboratory per instruction sheet provided in collection kit or send with scheduled courier. Dried spots stable for 6 months, but are discarded in lab after 30 days.

CPT Code

  • 83655