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Lead (Blood) Screening Test

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of lead in your blood to screen for exposure to this heavy metal, which can harm your body over time. Lead is often found in old paint, contaminated food/water, or industrial environments.

Quick summary

["A lead screening helps identify potential exposure that may need further evaluation or treatment."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
41985-3
Short code
LEADSCREENTESTSTATUSORRESULTS
Synonyms
—
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
cphs
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may recommend this test if you have risk factors for lead exposure, such as living in an older home with peeling paint, working in certain industries, or having a history of lead poisoning in your family. It can also be part of routine check-ups for children or pregnant individuals.

What Does the Test Involve?

A small blood sample is taken from your arm. The sample is then analyzed in a lab to measure lead levels. Results are typically available within a few days.

What Are Common Causes of Elevated Lead Levels?

Exposure to lead can come from sources like old paint, lead-based water pipes, contaminated food, or exposure to dust from lead-containing materials. Children are more vulnerable due to their developing bodies and tendency to put objects in their mouths.

What Do My Results Mean?

Results are not provided with specific numeric ranges here, but your healthcare provider will interpret them based on your health status and risk factors. High levels may require further testing, medical evaluation, or steps to reduce exposure.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Lead Level Check

Frequently asked questions

What if My Lead Level Is High?
If your test results show elevated lead levels, your doctor will likely recommend reducing exposure to lead sources, dietary changes, or chelation therapy in severe cases. Follow-up tests may be needed to monitor progress.
How Can I Lower My Risk of Lead Exposure?
If you suspect exposure, avoid touching your mouth after handling lead-containing materials. For children, ensure they avoid playing with old paint chips or contaminated toys. Regularly clean surfaces and use lead-safe practices in homes built before 1978.
How Often Should I Get This Test?
The frequency depends on your risk factors. Children under 6 are often tested annually if they have risk factors. Adults with known exposure may need testing more frequently, as advised by their healthcare provider.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy