Lead Exposure Screening (Urinary)

Why This Test Matters

Lead is often absorbed into the body through contaminated food, water, dust, or exposure to lead-based products. While some lead naturally occurs in the body, high levels can cause serious health problems, particularly in children. This test helps identify if you’ve been exposed to unsafe amounts of lead recently.

What to Expect Before the Test

You’ll likely provide a urine sample in a clinic or lab. Follow any instructions your healthcare provider gives you, such as avoiding certain medications or foods that might affect results. Drink plenty of water before the test to help produce a urine sample.

How the Test Works

Your urine is tested for lead using a specialized method that detects the metal’s presence. The test measures lead concentration in micrograms (mcg) per deciliter (dL) of urine, though exact reference ranges vary by lab.

Possible Causes of Lead Exposure

Lead exposure can come from sources like old paint, contaminated water, leaded gasoline, certain hobbies (e.g., soldering), or environmental pollution. Children are more vulnerable because their bodies absorb lead more easily, which can harm brain development.