ARUP's Laboratory Test Directory

0025016: Lead, Industrial Exposure Panel, Adults

Test Mnemonic: LEAD-IND
Methodology: Inductively Coupled Plasma/Mass Spectrometry/Hematofluorometry

Performed: Mon-Fri

Reported: 1-5 days

Specimen Required:  
Collect: One 7 mL royal blue (K2EDTA) or (Na2EDTA) or 3 mL tan (K2EDTA). Heparin anticoagulant is not acceptable.

Transport: 7 mL whole blood (royal blue, K2EDTA or Na2EDTA) or 3 mL whole blood (tan, K2EDTA) at 2-8°C. (Min: 2 mL)

Pediatric Collection/Transport: Not available for children under age 16. 

Remarks: Protect from light during collection, storage, and shipment. 

Unacceptable Conditions: Frozen, hemolyzed, or clotted samples, and heparin anticoagulant.

Stability: Ambient: 30 hours; Refrigerated: 5 weeks; Frozen: Unacceptable

Reference Interval:
 
Test Number Components Reference Interval
 Lead, Blood 0-15 years: 0.0-9.9 µg/dL
16 years and older: 0.0-24.9 µg/dL
 Zinc Protoporphyrin (ZPP), Whole Blood 0-40 µg/dL
 Zinc Protoporphyrin (ZPP) to Heme Ratio 0-69 µmol ZPP/mol heme

Interpretive Data:
 
Action required for workers with Elevated Lead Values OSHA, Occupational Exposure to Lead, 1978
No. of Tests Lead Action Required
1 ³ 40.0 µg/dL Notification of workers in writing; medical examination of worker and consultation.
3 ³ 50.0 µg/dL Removal of worker from job with potential lead exposure.
1 ³ 60.0 µg/dL Removal of worker from job with potential lead exposure.
2 £ 40.0 µg/dL Reinstatement of worker in job with potential lead exposure is based upon symptoms and medical evaluation.
OSHA requirements in effect since 1978 call for the measurement of whole blood lead and zinc protoporphyrins (ZPP) (NCCLS document C42-A, Nov. 1996) to evaluate the occupational exposure to lead. OSHA requires ZPP whole blood testing to be reported in units of µg/dL. Federal lead construction standards require a worker to be notified and removed from the job at levels of 50 µg/dL and higher, until physician authorizes return.


CPT Code(s):
83655 Lead; 84202 Zinc Protoporphyrin

 

 

 
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