Heavy metal test in Seoul, guided by real exposure

What a heavy metal test in Seoul involves

Toxicity testing at VEI Clinic is a focused medical workup for a suspected exposure, not a general detox screen. A heavy metal test in Seoul starts with a conversation with Dr. HyunSung Park, a board-certified internal medicine specialist, about where the exposure might come from, how long it lasted and what symptoms, if any, you have. That determines which metal to test, whether blood or urine is better, and when to collect the sample.

Everyone has small, harmless traces of metals in their body from food, water and air. The goal is not to find any metal at all, but to see whether your level is above what is expected and whether it plausibly explains your symptoms.

Matching the test to the exposure

Some exposures show best in blood and others in urine, and some metals clear within days. Testing long after a short exposure may be normal even if the exposure was real, which is why timing is part of the plan.

• Lead: a blood lead level. Sources include old paint, some ceramics and imported cosmetics or remedies, and certain hobbies and jobs such as soldering, firearms or renovation work
• Mercury: blood for mercury from eating large predatory fish such as tuna or swordfish; urine for mercury vapor from occupational exposure or broken devices
• Arsenic: urine testing; seafood eaten in the days before can raise the result with a harmless form of arsenic, so timing and speciation matter
• Cadmium: blood or urine, relevant mainly for smokers and some industrial workers
• Organ impact: kidney and liver function and a blood count, when exposure is significant

Why we avoid provoked urine and other unreliable tests

Some clinics give a chelating drug, such as DMSA or EDTA, and then measure metals in the urine. These provoked or challenge urine tests are not validated: chelators pull metals out of everyone's normal body stores, so results almost always look high, and they are compared with reference ranges meant for unprovoked samples. Medical toxicology organizations advise against this practice, and it can lead to unnecessary and potentially harmful chelation therapy.

Hair and nail analysis are also unreliable for diagnosis because of contamination from shampoos, dyes and the environment. Likewise, urine mycotoxin panels marketed for mold toxicity are not an established way to diagnose illness; if mold at home is the concern, we focus on allergy, asthma and practical steps to remove the source.

Who should consider testing, and who probably does not need it

Testing is worthwhile if you work with metals, batteries, paints, glass or electronics; renovate older buildings; eat large predatory fish several times a week; use imported traditional remedies or cosmetics; or have symptoms such as anemia, abdominal pain, numbness or kidney changes alongside a likely exposure. It is generally not useful as a routine screen for vague tiredness without any exposure history, and in that situation we look for more common causes first.

How to prepare: avoid seafood, especially shellfish and seaweed, for two to three days before arsenic testing. Remove metal jewelry, wash hands with plain soap, and bring a list of supplements, as some contain minerals. Bring workplace safety data sheets if you have them. Do not stop prescription medicines unless told.

Results explained 1:1 in English, and next steps

Most results come back within about a week, longer for specialized send-out tests. Dr. Park explains your numbers in English, compares them with appropriate reference values and tells you what they mean. For mildly raised levels, the main treatment is finding and removing the source, then retesting to confirm the level falls. Chelation therapy is reserved for significant poisoning and is directed by specialists; we refer you to a hospital when that is needed. For home water or workplace air, we can suggest certified environmental testing and review the results with you.

Red flags: when to go to the emergency room

Call 119 or go to an emergency room after a suspected acute poisoning or chemical exposure, or for confusion, seizures, severe vomiting, difficulty breathing, collapse or a child swallowing an unknown substance, battery or medicine. Possible carbon monoxide exposure, with headache, dizziness and nausea in several people in the same space, needs fresh air and emergency care immediately.