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Epic Code LAB2111119 Lead Screen Filter Paper

Test Name Alias

Lead Screen Filter Paper | Capillary Lead Screen | Dried Blood Screen Filter Paper | DBS | Resources | 9677

Interface Order Alias


Collection Instructions

Capillary blood specimens should be applied to collection card, completely filling the circles. Care should be taken to completely fill the first circle on the card before moving to the next one. Card must be completely dry before placement into envelope, no less than 10 minutes but could take a few hours. 


  1. Please wash child’s hand/heel with soap and water, concentrating on the site to be used.  Use of friction is an important element in assuring that the site is clean of potential contaminants.
  2. Do not touch the filter paper to the finger or heel itself, only to the blood droplet.
  3. Collection tools should be kept covered and stored in clean, dust-free areas.
  4. When using filter paper, do not close the cover on the specimen card until the specimen (all circles) is completely dried.  The cards may sit overnight (in a protected area) to dry completely, if needed.
  5. Please also take great care to avoid touching the collection portion of the card before you begin collection or while it is wet.  You may unknowingly contaminate the card by doing so.


Spectrum Health Toxicology department can be contacted for any additional information at 616-267-2780.

Testing can be run off of 2 completely filled circles (toxicology needs 3 circles if results don’t agree), however, collector should still try and fill all 4 circles on the card.

Specimen Stability

Ambient: 28 days

Refrigerate: 28 days

Frozen: 28 days

Laboratory Retention: 2 weeks

Test Frequency

Available twice weekly, usual TAT 1-3 days.

Reference Range

Lead Screen Filter Paper
    <3.5 mcg/dL (lower limit of detection is 2 mcg/dL)


In alignment with recommendations from the Center for Disease Control and Prevention (CDC) the reference range for blood leads has been updated from 5 mcg/dL to 3.5 mcg/dL.


Any elevated capillary blood specimens should be confirmed with a venous specimen because of possible contamination.


For guidance on recommend actions based on blood lead levels see the follow resources:

  1. CDC:  Recommended Actions Based on Blood Lead Levels | Lead | CDC (
  2. MDHHS: For Healthcare Providers ( (
  3. Poison Control Center (1-800-222-1222)
  4. Pediatric Environmental Health Specialty Unit (PEHSU) (Families - PEHSU,


Performing Department


Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI


Inductively Coupled Plasma-Mass Spectrometer (ICP-MS)


This test was developed, and its performance characteristics determined by Corewell Health Toxicology Laboratory.  It has not been cleared or approved by the FDA.  The laboratory is regulated under CLIA as qualified to perform high-complexity testing.  This test is used for clinical purposes.  It should not be regarded as investigational or for research.



CDM Code


Epic Test ID



Lead Screen Filter Paper: 10368-9

Mayo Access Code


Reviewed Date