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Lead in whole blood (mass concentration)

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

This test measures the amount of lead present in your blood, which can indicate exposure to lead, a heavy metal that may harm your body, especially in children.

Quick summary

["Lead exposure can cause serious health problems, especially in kids."]

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

Key facts at a glance

LOINC
88675-4
Short code
Lead EMS MD at scene
Synonyms
Lead EMS MD at scene
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 order this test if you have symptoms of lead poisoning (such as abdominal pain, fatigue, or behavioral changes), if you work in an environment with lead exposure, or if you live in an area with high lead levels in the environment. Children are tested more often due to higher sensitivity to lead’s effects on development.

What to Expect During the Test

A small blood sample is taken from a vein in your arm. It usually causes only minor discomfort, and you may feel a slight pinch. The sample is then sent to a lab for analysis.

What Are Normal Results?

There are no specific reference ranges provided here, as lead levels vary by age and health status. High levels may require further investigation or treatment.

What Are High Lead Levels Indicating?

Elevated lead levels can suggest recent exposure to lead, which may affect the nervous system, kidneys, or other organs. Chronic exposure can lead to long-term health issues, particularly in children.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Blood Lead Level

Frequently asked questions

How is lead exposure prevented?
Avoiding lead exposure is key. If you suspect exposure (e.g., working in lead-based industries, living in older homes with peeling paint), follow safety guidelines like wearing protective gear or removing contaminated clothing. Children should avoid playing in areas with high lead risks, like old houses or dusty playgrounds.
What should I do if my test results are high?
If your lead level is elevated, your healthcare provider will discuss next steps, which may include further testing, reducing exposure, or starting treatment (like chelation therapy in severe cases). Follow their advice closely.
Does diet affect lead levels?
Diet alone does not change lead levels, but eating a balanced diet rich in calcium, iron, and vitamin C may help reduce lead absorption from the gut. Avoiding foods high in lead (like certain candies or old paint chips) can also help.
  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