Mercury in 24-Hour Urine

Mercury is a heavy metal that can be extremely toxic. It exists in three forms, each capable of causing different symptoms if ingested, inhaled, or comes into contact with the skin. At room temperature, mercury naturally exists as a liquid and as an odorless vapor. A 24-hour urine test for mercury may be necessary to determine if this metal is causing potential health problems. IntroLab in Belgrade is here to assist you with this urine test.

Mercury exposure

Exposure to mercury can occur through polluted air or water, working in industries that still use this metal, consuming fish high in mercury, or using certain complementary and alternative health remedies.

Long-term mercury exposure can cause kidney and brain damage in adults. During pregnancy, mercury exposure can lead to permanent damage to the developing fetus. Breastfeeding can also expose infants to this harmful metal. Children exposed to mercury may experience damage to their kidneys, nervous system, and digestive system.

Mercury is also present in silver amalgam dental fillings. Although small amounts of mercury can be absorbed from these fillings, the levels are not sufficient to cause health problems.

Mercury in 24-hour urine test

A 24-hour urine mercury test is performed to measure the amount of this metal and detect medical disorders in their early stages. This test is also recommended if you have symptoms such as chest tightness, difficulty breathing, vomiting, or a burning sensation in the mouth. It is also known as the Hg urine test.

Preparation for the test

No special preparations are required. However, it is important to inform your doctor about any medications you are taking and any allergies you may have. Additionally, inform the laboratory staff about the food you have consumed in the past 48 hours, as some foods may contain mercury and could influence the test results.

Results and toxicity of mercury

The results of a 24-hour urine mercury test are expressed in micrograms per liter (mcg/L). Normal levels of mercury in urine are less than 20 mcg/L. However, the presence of some amount of mercury in the urine does not necessarily indicate health problems. High levels of mercury in urine, over 20 mcg/L, may suggest mercury poisoning and the need for treatment. Poisoning can be acute or chronic, with symptoms varying depending on the form of mercury and the duration of exposure.

Acute mercury poisoning typically results from exposure to high concentrations of this metal over a short period. Symptoms can include:

• Nausea, vomiting, and diarrhea
• Increased salivation
• Metallic taste in the mouth
• Difficulty breathing
• Cough
• Fever
• Tremor
• Anxiety
• Mood changes
• Loss of appetite and weight loss

On the other hand, chronic mercury poisoning results from prolonged exposure to lower concentrations of the metal. Symptoms of chronic poisoning can be more subtle and develop over time. They typically include:

• Fatigue
• Loss of appetite and weight loss
• Skin rashes
• Mood changes
• Nervousness
• Insomnia
• Headaches
• Tremor
• Changes in vision or hearing
• Kidney damage

If a 24-hour urine mercury test reveals high levels of this heavy metal, treatment may involve removing the source of exposure and chelation therapy, which helps remove mercury from the body.