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Lead Blood Concentration (Mass Concentration)

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

This test measures the amount of lead in your blood, which can help identify exposure to this heavy metal that may cause health problems, especially in children.

Quick summary

["Lead exposure can harm your body, especially in kids; this test helps check for unsafe levels."]

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

Key facts at a glance

LOINC
5672-1
Short code
Deprecated Lead Bld Ql
Synonyms
Deprecated Lead Bld Ql
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test if you have symptoms like abdominal pain, fatigue, or behavioral changes (common in children), or if you’ve been exposed to lead sources like paint, contaminated water, or certain hobbies (e.g., soldering). It’s also part of routine screening for children in high-risk areas.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. It usually takes a few minutes. If you’re a child, they may use a different method to collect blood to reduce discomfort.

What Happens During the Test?

Your blood sample is sent to a lab where it’s analyzed to detect lead levels. The test uses a sensitive method to measure tiny amounts of lead in your bloodstream.

What Do the Results Mean?

Results are reported in micrograms per deciliter (µg/dL). High levels may indicate recent exposure or ongoing health risks. Your provider will discuss results with you and recommend next steps, such as further testing or reducing exposure to lead.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Lead Blood Level

Frequently asked questions

What Are Common Symptoms of High Lead Levels?
In children, high lead levels can cause developmental delays, learning difficulties, or behavioral issues. In adults, it may lead to fatigue, headaches, or kidney problems. Lead exposure is particularly dangerous for pregnant women and unborn babies.
How Can Lead Exposure Be Prevented?
Avoid known lead sources like old paint, lead-based products, or contaminated food/water. If you suspect exposure, contact your healthcare provider or local health department for guidance.
How Often Should This Test Be Done?
Children with known lead exposure may need repeated testing. Adults with occupational or environmental risks may also be monitored. Follow your provider’s advice for follow-up testing.
  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