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22819 Lead, Blood

Lead, Blood
Test Code: BL
Synonyms/Keywords
​​Pb, Lead in blood​
Useful For
Useful to help in determining lead toxicity​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ EDTA whole blood​ Royal Blue Top Tube (BD trace element, K2 EDTA)​​
 EDTA Lavender Top Tube (LTT)​​
 3-7 mL​ 1 mL​ 0.5 mL 
Collection Processing Instructions
A dedicated tube is preferred although removal of small whole blood volumes for a hemogram is acceptable.  While a venous collection is preferred, it is acceptable to draw a capillary sample when necessary (pediatric).  Order test code CBL​ when a capillary sample is drawn​.   
Specimen Stability Information
Specimen Type Temperature Time
EDTA whole blood ​ Refrigerate​ (preferred) 1 week​
​Frozen ​1 week
Rejection Criteria

​Serum samples collected in Royal Blue tubes without K2 EDTA

Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 6-8 hours​ Thermo Graphite Furnace/M6 Atomic Absorption Spectrometer
Test Information
This test was developed and its performance characteristics determined by Marshfield Labs.  It has not been cleared or approved by the US Food and Drug Administration.  This test is used for clinical purposes.  It should not be regarded as investigational or for research.
Reference Range Information
Performing Location Reference Range
Marshfield​

0-5 years: 0-3 ug/dL*

6-17 years: 0-10 ug/dL​

Adults (>17 years): 0-25 ug/dL

*Ruckart PZ, Jones RL, Courtney JG, et al. Update of the Blood Lead Reference Value - United States, 2021.  MMWR 2021;70:1509-1512.

Interpretation
The laboratory is required to report the results of all blood lead tests, regardless of the concentration of lead in the blood, to the State of Wisconsin Dept. of Health and Family Services.  For pediatric lead levels > or = 4 ug/dL, comments will be added to the report based on the CDC guidelines​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83655​ ​ ​ ​ ​
Synonyms/Keywords
​​Pb, Lead in blood​
Ordering Applications
Ordering Application Description
​Cerner ​Lead, Blood
​
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ EDTA whole blood​ Royal Blue Top Tube (BD trace element, K2 EDTA)​​
 EDTA Lavender Top Tube (LTT)​​
 3-7 mL​ 1 mL​ 0.5 mL 
Collection Processing
A dedicated tube is preferred although removal of small whole blood volumes for a hemogram is acceptable.  While a venous collection is preferred, it is acceptable to draw a capillary sample when necessary (pediatric).  Order test code CBL​ when a capillary sample is drawn​.   
Specimen Stability Information
Specimen Type Temperature Time
EDTA whole blood ​ Refrigerate​ (preferred) 1 week​
​Frozen ​1 week
Rejection Criteria

​Serum samples collected in Royal Blue tubes without K2 EDTA

Useful For
Useful to help in determining lead toxicity​
Reference Range Information
Performing Location Reference Range
Marshfield​

0-5 years: 0-3 ug/dL*

6-17 years: 0-10 ug/dL​

Adults (>17 years): 0-25 ug/dL

*Ruckart PZ, Jones RL, Courtney JG, et al. Update of the Blood Lead Reference Value - United States, 2021.  MMWR 2021;70:1509-1512.

Interpretation
The laboratory is required to report the results of all blood lead tests, regardless of the concentration of lead in the blood, to the State of Wisconsin Dept. of Health and Family Services.  For pediatric lead levels > or = 4 ug/dL, comments will be added to the report based on the CDC guidelines​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 6-8 hours​ Thermo Graphite Furnace/M6 Atomic Absorption Spectrometer
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83655​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.