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22820 Lead, Capillary Blood

Lead, Capillary Blood
Test Code: CBL
Synonyms/Keywords
Pb - capillary, Lead in blood - capillary​
Useful For
This test is useful 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​ EDTA microtainer​ Heparin microtainer​ 0.5 mL​ 0.3 mL​ 0.15 mL (not recommended)​
Collection Processing Instructions

Venipuncture is the method of choice for blood lead testing as it is less subject to contamination from the skin surface than capillary collection.

Lead Determination - Guidelines for Capillary Blood Collection​

Specimen Stability Information
Specimen Type Temperature Time
EDTA whole blood from microtainer​ Refrigerate​ 1 week​
Heparin whole blood from microtainer​ Refrigerate​ 1 week​
Rejection Criteria
Specimens >25% clotted
Glass capillary tubes​
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 6-8 hours​ Atomic Absorption/Thermo M6 Atomic Absorption Spectrometer with Dell Computer​
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 - capillary, Lead in blood - capillary​
Ordering Applications
Ordering Application Description
​COM Lead, Blood-Capillary
​Cerner ​Lead Level, Capillary
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​ EDTA microtainer​ Heparin microtainer​ 0.5 mL​ 0.3 mL​ 0.15 mL (not recommended)​
Collection Processing

Venipuncture is the method of choice for blood lead testing as it is less subject to contamination from the skin surface than capillary collection.

Lead Determination - Guidelines for Capillary Blood Collection​

Specimen Stability Information
Specimen Type Temperature Time
EDTA whole blood from microtainer​ Refrigerate​ 1 week​
Heparin whole blood from microtainer​ Refrigerate​ 1 week​
Rejection Criteria
Specimens >25% clotted
Glass capillary tubes​
Useful For
This test is useful 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​ Atomic Absorption/Thermo M6 Atomic Absorption Spectrometer with Dell Computer​
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.