10
2CDC (Centers for Disease Control). ‘What Do Parents Need to Know to Protect Their Children?’, 18 May
2012. Web. 26 Sept. 2012, www.cdc.gov/nceh/lead/ACCLPP/blood_lead_levels.htm.
3Newman, N., et al. PEHSU Lead Working Group, June 2013. Recommendations on Medical Management
of Childhood Lead Exposure and Poisoning. Retreived from: http://www.pehsu.net/_Library/facts/medi-
cal-mgmnt-childhood-lead-exposure-June-2013.pdf.
Interpreting Patient Test Results
The analyzer’s display window shows the blood lead result. The result is in micrograms
(µg) of lead per deciliter (dL) of whole blood. No calculation is needed. Results are
displayed to one decimal place. The reportable range of the test is 3.3 to 65 µg/dL.
“Low” in the display window indicates a blood lead test result less than 3.3 µg/dL.
When this occurs, report the blood lead result as less than (<) 3.3 µg/dL.
Interpreting Patient Test Results
“High” in the display windows indicates a blood lead test result greater than
65 µg/dL. When this occurs, report the blood lead result as greater than
(>) 65 µg/dL. “High” results on LeadCare II should be followed up immediately
as an emergency laboratory test.
Blood lead test results should be shared with the patient’s physician for interpretation
and to determine when retesting and follow-up care are necessary.
In 2012, the Centers for Disease Control & Prevention (CDC) established 5 µg/dL as
the new “reference level” for lead in blood, a change from the previously utilized
“level of concern” of 10 µg/dL.2
Repeat Testing Guidelines3
If blood lead level Child’s age* Perform re-test
(capillary sample allowed) within
<5 µg/dL < 12 months 3 - 6 months
1 - 5 years 6 - 12 months
If blood lead level Child’s age* Perform diagnostic test
on venous blood within
5 - 14 µg/dL 1 - 5 years 1 - 3 months
15 - 44 µg/dL 1 - 5 years 1 - 4 weeks
>44 µg/dL 1 - 5 years 48 hours
* Ensure blood lead levels are checked at both 1 and 2 years of age.
Capillary blood samples that generate an elevated lead level should be
conrmed with a venous sample. Venous samples should be sent to a reference
laboratory for conrmation.
In cases where the capillary specimen demonstrates an elevated lead level but
the conrmation venous sample does not, it is important to recognize that the
child may live in a lead-contaminated environment that resulted in contamination
of the ngertip. Efforts should be made to identify and eliminate the source of lead
in these cases.3
Consult your local public health department, or the CDC, for further information on
actions to be taken for blood lead results that are greater than 5 µg/dL.
Report all blood lead test results to the appropriate state or federal agency.