Blood Lead Testing
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Covers specimen types, collection/labeling, contamination avoidance, testing guidance, and regulatory screening recommendations for pediatric blood lead testing for providers serving Central California Alliance for Health members.
No material clinical or coverage changes in this revision.
Coverage Criteria
California pediatric screening and assessment
California regulatory screening and assessment recommendations for children
Also test after a change in circumstances that puts the child at risk; other indications to consider include parental request, suspected exposure, or history of living in/visiting a country with high environmental lead.
Refugee screening and follow-up
Federal refugee screening guidance (CDC)
Also evaluate iron status including hemoglobin/hematocrit and red blood cell indices.
Point-of-service (point-of-care) devices are permitted for initial screening only. They must not be used for confirmatory testing or for monitoring of blood lead levels. Confirmatory and monitoring tests require venous specimens processed by standard laboratory methods.
Screening and detection of lead exposure in at-risk children, routine testing for children in publicly supported programs, and refugee screening.
Screening and detection of lead exposure in at-risk children, routine testing for children in publicly supported programs, and refugee screening.
Providers should monitor and provide follow-up for children with levels at or above the current CDC reference value.
Also consider testing for parental request, suspected exposure, or history of residence/visits to countries with high environmental lead.
Evaluate iron status including hemoglobin/hematocrit and red blood cell indices for refugees.
Covered Indications
Screening and detection of lead exposure in at-risk children, routine testing for children in publicly supported programs, and refugee screening.
Screening and detection of lead exposure in at-risk children, routine testing for children in publicly supported programs, and refugee screening.
Providers should refer to current CDC guidance for action thresholds and management.
For refugee children, perform entry testing for ages 6 months–16 years and follow-up testing 3–6 months post-resettlement for ages 6 months–6 years.
Exposure from all sources is cumulative; even low levels are harmful.
Frequency Limits
Provider Actions
Prior authorization
No prior authorization is required for blood lead testing under this policy.
Ordering and regulatory responsibilities
Lab requisition and ordering must follow California regulations and include required patient and collection information as specified in the policy.
- Physicians, nurse practitioners, and physician assistants must follow California assessment and testing regulations.
- Ensure the lab requisition contains all required patient and collection details (see Documentation block).
Lab requisition information required
Include complete patient and collection information on the lab requisition; label the draw/sample type as capillary (C) or venous (V).
- Patient Name
- Patient Phone
- Patient Address
- Patient Gender
- Patient Birth Date
- Patient's Employer Contact Info (if applicable)
- Provider Name
- Provider Phone
- Provider Address
- Date of Collection
- Draw/sample type (capillary or venous) — label C for capillary, V for venous
- Recommend note on requisition: 'Use certified lead-free tube' (e.g., tan top or royal blue top)
Prohibition on point-of-service devices for confirmatory/monitoring tests
Do not use point-of-service (point-of-care) devices for confirmatory testing or monitoring; such results may not be accepted.
- Screening may use capillary or venous samples, but confirmatory and monitoring tests require venous samples.
- Using point-of-service devices for confirmatory testing or monitoring is disallowed and may result in non-acceptance of those results.
Ordering Requirements
Ordering requirements and regulatory compliance
Physicians, nurse practitioners, and physician assistants must follow California regulations for assessment and testing and ensure lab requisitions include required patient and collection information.
- Follow California anticipatory guidance and screening schedules (assess at periodic visits from 6 months to 6 years; test at 12 and 24 months for children in publicly supported programs or per targeted assessment).
- Ensure lab requisition contains the patient, provider, and collection details listed in specimen labeling guidance.
Definitions
Background
Lead exposure in children is cumulative and even low levels can cause developmental delay and organ damage. Testing of at-risk children, particularly toddlers and children in publicly supported programs or living in older housing, enables early detection and follow-up. Use screening tests (capillary or venous) for initial detection, but remember that confirmatory or monitoring measurements require venous samples and standard laboratory testing methods rather than point-of-service devices.
Not Covered
Use of point-of-service devices for confirmatory testing or monitoring is not acceptable. Confirmatory and monitoring blood lead tests must be performed on venous specimens using standard laboratory procedures.
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