Trace Metal Blood Test

A heavy metal screen or trace metal panel. It measures the concentration of specific metals in whole blood or serum, using a technique called mass spectrometry that can detect them at parts-per-billion levels. Blood is the right sample for recent or ongoing exposure to lead, and for the essential metals; urine and hair tests are used for some other metals and for long-term exposure. This test measures lead plus iron, copper, chromium, magnesium and calcium from one venous sample.

Yes, always. Iron, copper, magnesium, calcium, zinc and chromium are essential: your body needs them for oxygen transport, enzymes, nerves, bones and blood sugar control, and both too little and too much cause problems. Lead has no function in the body and is toxic at any level, so the aim is for it to be as low as possible. This test measures lead and five essential metals. It does not measure mercury, arsenic, cadmium or aluminium, so if your concern is one of those you will need a different test.

Lead: tiredness, irritability, headaches, abdominal pain, constipation, anaemia, high blood pressure, memory and concentration problems, and in children developmental delay; most people with raised lead have no symptoms until levels are high. Copper excess: nausea, abdominal pain and, with long-term overload, liver damage. Chromium excess from industrial exposure: skin and respiratory irritation. Deficiency of the essential metals causes its own symptoms, tiredness and breathlessness for iron, cramps and palpitations for magnesium. Because the symptoms are vague and overlap with many conditions, a blood test is the only way to know.

People with occupational exposure: construction, demolition and renovation of pre-1970s buildings, plumbing, battery, scrap metal, foundry, shooting range and some manufacturing work. People living in older housing with original paintwork or lead pipes, or using imported cosmetics, spices, traditional remedies or glazed pottery, which are recurring sources of lead in the UK. People with unexplained anaemia, abdominal pain, neuropathy or high blood pressure that has not been explained. And people who want their essential mineral status checked, for example on restrictive diets or with malabsorption.

Your GP can order a blood lead level if you have a plausible exposure and symptoms, and occupational health services test workers in regulated industries under the Control of Lead at Work Regulations. The NHS does not offer heavy metal screening for reassurance or for vague symptoms without an identified exposure, and testing for the essential metals is done only when a specific deficiency is suspected. A private test gives you the panel without a referral, and a raised lead result should be taken to your GP, who is required to report it.

The GP report explains the level against UK reference values and what to do. Blood lead below 5 micrograms per decilitre is typical for UK adults with no particular exposure; above 10 warrants finding and removing the source; above 20 to 25 needs GP assessment and, in workers, removal from exposure; higher levels may need specialist treatment. The most important step at any raised level is identifying the source, because lead is cleared slowly once exposure stops. Public Health England's Lead Exposure Surveillance System monitors raised results in England.

Not the ones sold as supplements, foot pads, clays or juices; none has been shown to remove metals from the body, and some contain metals themselves. The only treatment that removes heavy metals is medical chelation, prescribed by a specialist for confirmed high levels, and it carries risks that make it inappropriate for anyone with normal or mildly raised results. For most people the right response to a raised level is to find and stop the exposure and let the body clear it, with retesting to confirm. For the essential metals, correcting a deficiency is straightforward through diet or supplements.

Because they are the metals whose levels most often matter to health, and because the balance between them is informative. Iron deficiency is the most common nutritional deficiency in the world. Copper deficiency causes anaemia and nerve problems and can follow zinc supplementation or bariatric surgery; copper excess points to Wilson's disease. Magnesium is low in many people on diuretics or acid-suppressing tablets and causes cramps, palpitations and fatigue. Calcium reflects bone and parathyroid health. Chromium is involved in blood sugar control and is raised by some occupational exposures and metal implants.

No fasting. Stop mineral supplements, including multivitamins containing iron, magnesium or chromium, for 24 hours beforehand so the result reflects your body's levels rather than the morning's tablet. The sample is drawn into special metal-free tubes at a clinic or by a nurse, which is why there is no finger-prick option.

£449 at a Goodbody clinic or £469 with a nurse home visit, including the blood draw, laboratory analysis of six metals and a GP report. Heavy metal panels in the UK typically cost £150 to £500 depending on the number of metals and the method; single blood lead tests are around £60 to £100.

Results are emailed within 7 to 10 working days of your sample reaching the laboratory, because metal analysis is performed by a specialist laboratory in batches. The GP report explains each metal against its reference range and what to do about any that are outside it.

At any of 250+ Goodbody clinics across the UK, or with a nurse visiting your home. No GP referral is needed. Find your nearest clinic.