Lead Blood Test
A lead blood test (P-Bly) measures the concentration of lead in your blood to detect and assess recent or ongoing exposure. Lead serves no beneficial purpose in the human body, and even small amounts can interfere with critical biological processes. It is most commonly encountered in older building materials (paint, pipes), contaminated water, certain imported goods, and industrial environments. Children are especially vulnerable because their developing brains and bodies absorb lead more readily.
Why Test Lead?
Testing for lead is essential for people living or working in environments where lead contamination may be present, such as older homes, industrial workplaces, or areas with known pollution. It is also recommended when symptoms such as fatigue, cognitive difficulties, or developmental delays occur, particularly in children. Since lead affects the nervous system, red blood cell production, kidneys, and fertility, early detection is critical for both diagnosis and prevention.
What Do High Lead Levels Mean?
High blood lead levels point to recent or ongoing exposure. Common sources include lead-based paints, water from lead pipes, certain imported cosmetics or ceramics, contaminated soil, and occupational settings such as battery manufacturing or metal recycling. In adults, levels above 1.5 micromol/L and in women under 50 above 0.5 micromol/L are considered elevated. Long-term exposure can cause fatigue, memory problems, anaemia, kidney damage, fertility issues, and neurological disorders. Identifying and eliminating the source is essential.
What Do Low Lead Levels Mean?
Low or undetectable lead levels generally indicate no significant exposure and are the expected healthy result. There is no beneficial role for lead in the body, so the lower the level, the better.
Symptoms to Watch For
- Persistent fatigue and weakness
- Memory and concentration problems
- Headaches
- Abdominal pain and constipation
- Joint and muscle pain
- Anaemia
- Developmental delays in children
- Behavioural changes or irritability
Who Should Get Tested?
- People living in older homes with potential lead paint or plumbing
- Workers in industries involving lead (battery, metal recycling, construction)
- Individuals in areas with known lead contamination in water or soil
- Children with developmental delays or behavioural changes
- Adults with unexplained fatigue, cognitive decline, or anaemia
- Anyone concerned about environmental lead exposure
How to Prepare for Your Test
No special preparation is required for this test. Bring valid ID to your appointment.
Frequently Asked Questions
Is there a safe level of lead in the blood?
How does lead affect children differently than adults?
Can lead be removed from the body?
Reviewed by
Wellth Team
Wellth
Our content is written and reviewed by Wellth, and fact-checked against peer-reviewed research and current Swedish clinical guidelines.
Learn more about our team →Medical Disclaimer
The information on this page is provided for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment. Wellth provides health information and testing services but is not a substitute for clinical care. Always consult a qualified healthcare provider if you have questions about a medical condition. If you are experiencing severe or urgent symptoms, contact your doctor or call 1177 Vårdguiden. Blood test results should be interpreted by a qualified healthcare professional in the context of your complete medical history.