Your Toddler Looks Fine. Ask About a Blood Lead Test Anyway.
Part 3 of 5 in our National Lead Poisoning Prevention Week series, October 25 to 31, 2026
The pediatrician’s waiting room, a few weeks after your child’s second birthday. They’re climbing the chairs, covering the exam-table paper in stickers, and very obviously fine. You’re wondering whether to ask about a lead test or wait until something seems wrong.
Ask now. Most children with raised lead levels have no obvious symptoms, and a blood test is the only way to know.
Why you can’t rely on symptoms
Lead poisoning in children usually develops quietly. When symptoms do appear, such as tiredness, irritability, stomach pain or loss of appetite, they are easy to mistake for everyday toddler illnesses. By then, exposure may have been going on for some time, which is why testing is based on age and risk rather than on how a child seems.
Why the toddler years matter
There is no safe level of lead in a child’s blood. Even low levels are linked to lower IQ, attention problems and poorer school performance.
Blood lead levels often rise through the first year of life and tend to peak between 18 and 24 months, just as children are crawling, climbing and putting everything in their mouths. Dust from old paint has plenty of chances to reach them.
When should a child have a blood lead test?
If your child is enrolled in Medicaid, blood lead tests are required at 12 and 24 months, and at any point between ages 2 and 6 if they haven’t been tested before.
If your child isn’t on Medicaid, the same ages are a good prompt to raise it. Your clinician can advise based on your child’s age, your home and any other risk factors.
What to ask at the appointment
- Can we check my child’s blood lead level today, or book it in?
- They’ve never been tested. Can we catch up?
- If the result is high, what happens next, and who will contact us?
Many practices start with a finger-prick test. If that result is raised, a second sample from a vein is usually taken to confirm it. Knowing that in advance makes the follow-up far less alarming.
What the result means
CDC uses a blood lead reference value of 3.5 micrograms per deciliter to identify children with higher levels than most. It is a comparison point, not a safe limit. Your clinician will explain your child’s result and any next steps.
Where home testing fits
A child’s blood test and a home paint test answer different questions, and one never replaces the other. Once the health question is with your pediatrician, it’s worth thinking about the house too, especially if it was built before 1978 or you have work planned. That’s tomorrow’s topic.
Ask your pediatrician about a blood lead test at your child’s next visit. For information on testing painted surfaces at home, visit leadcheck.com or luxfermagtech.com, or call 800-503-4483.
Read next: Part 4, Stop With the Sander in Your Hand. Start of the series: Part 1, Built Before 1978? Lead Paint Could Still Be in Your Walls.