LEAD, BLOOD, QUANTITATIVE

Test Documentation
Specimen Required
Draw blood in a dark-blue EDTA tube. Send 1.0 mL whole blood (0.2 mL minimum) refrigerated. Care should be used in collecting specimens to avoid contamination because lead is widely distributed in the environment.
A completed lead requisition must accompany sample.

Alternate Specimen
Whole blood: Lavender EDTA, K2EDTA (brown top). If sample is drawn capillary, indicate on tube.

Rejection Criteria
Clotted samples

Methodology
Atomic Absorption Spectrophotometry

Stability
Room Temperature: 7 days; Refrigerated: 1 month; Frozen: Not Recommended

Reference Range
Blood lead in children (Ages 0-6) according to CDC Classification (May 13, 2012
Blood Lead   Comment  
< 5 µg/dL   Not lead-poisoned  
5-9.9 µg/dL   Rescreen within 6 months.  
   Provide lead education and prevention strategies  
10-14 µg/dL   Rescreen within 3 months. Provide lead education and preventions strategies.  
15-19 µg/dL   Rescreen again in 1-3 months. Provide lead education and prevention strategies.  
20-44 µg/dL   Provide lead education and prevention strategies. Provide environment investigation and control current lead hazards.  
45-69 µg/dL   Provide lead education and prevention strategies and refer for chelation therapy.  
>70 µg/dL   Provide lead education and prevention strategies plus hospitalize child for chelation therapy immediately. A medical emergency.  
*Elevated levels of blood lead should be confirmed with a second specimen before remedial action is instituted.
Elevated capillary blood specimens should be repeated using a venous specimen due to possible contamination.
Adults:
Blood Lead   Comment  
Less than 10.0 ug/dL   No action required  
10.0-24.9 ug/dL   Identify and minimize exposure  
25.0-49.9 ug/dL   Remove from exposure if symptomatic  
50.0-79.9 ug/dL   Remove from lead exposure. Immediate medical evaluation required.  
>= 80.0 ug/dL   Chelation may be indicated if symptomatic. Seek consultation.  

Performed
Sunday-Friday

Turnaround Time3 days
Test CodeLEAD
CPT-4 Code (s)
83655
LOINC Codes
5671-3

Warde
Medical
Laboratory