Arsenic (Urine)

What is an Arsenic (Urine) Test?

The Arsenic (Urine) Test is a toxicology analysis designed to identify and quantify arsenic levels in the urine, offering a reliable indication of recent exposure to this toxic element. Arsenic is a naturally occurring metal found in soil, groundwater, and certain foods (especially rice, seafood, and shellfish). It’s also used industrially in pesticides, wood preservatives, and metal processing.

High or prolonged exposure to arsenic can damage the liver, kidneys, nervous system, and skin, and is associated with increased long-term risks of cancer and cardiovascular disease. Urine testing is the most accurate method for assessing arsenic exposure because the element is primarily eliminated through urine within a few days of contact.

At London Blood Tests, your sample is analysed using inductively coupled plasma mass spectrometry (ICP-MS), one of the most precise laboratory techniques for trace metal detection. Results reflect exposure over the past 24–72 hours and can help differentiate between organic (less harmful) and inorganic (toxic) forms of arsenic.

Benefits of the Arsenic (Urine) Test

1. Accurate Exposure Detection
   Measures recent exposure to arsenic with high sensitivity, even at trace concentrations (parts per billion).

2. Differentiates Between Arsenic Types
   Distinguishes toxic inorganic arsenic (from contaminated water, industrial sources, or pesticides) from organic arsenic (commonly found in seafood).

3. Supports Clinical Investigation
   Helps identify environmental or occupational exposure in individuals with symptoms of heavy metal toxicity.

4. Guides Detoxification or Chelation Therapy
   Provides baseline data for clinicians to monitor effectiveness of detoxification or chelation treatments.

5. Protects Long-Term Organ Health
   Detects potentially harmful exposure early, preventing chronic damage to the liver, kidneys, skin, and cardiovascular system.

6. Ideal for Occupational Monitoring
   Useful for individuals working in industries such as metal smelting, construction, agriculture, or chemical manufacturing.

7. Optional GP Consultation for Results Review
   Results can be discussed with one of our GPs for personalised guidance on detoxification, supplementation, or further testing if needed.

Why Do I Need an Arsenic (Urine) Test?

Arsenic exposure can occur through contaminated water, air, food, or occupational contact. Because symptoms are often non-specific and develop slowly, testing is the only reliable way to confirm exposure levels.

You may need this test if you:

• Work with industrial chemicals, mining, or metal processing
• Live in or have visited areas with contaminated groundwater
• Eat large amounts of rice, seafood, or imported foods
• Experience unexplained symptoms such as:
• Fatigue, headache, or confusion
• Tingling or numbness in hands or feet
• Skin discoloration or thickened patches on palms/soles
• Abdominal pain, diarrhoea, or nausea
• Hair loss or brittle nails
• Unexplained weight loss

Testing helps differentiate between acute exposure (recent high dose) and chronic exposure (low-level accumulation over time). The test is also recommended after known chemical spills or environmental incidents.

Step-by-Step: How the Test Works

In-Clinic Testing

1. Book Your Appointment
• Schedule online or by phone. No referral is needed.
• You’ll receive guidance on how to collect the urine sample correctly for optimal accuracy.
2. Sample Collection
• A spot urine sample or 24-hour urine collection may be requested, depending on your exposure history.
• Your clinician will provide sterile collection containers and clear instructions.
3. Sample Handling
• The sample is sealed, labelled, and sent under controlled conditions to our UKAS-accredited laboratory for ICP-MS analysis.
4. Laboratory Analysis
• The lab uses inductively coupled plasma mass spectrometry, which measures arsenic concentrations at trace levels (micrograms per litre).
• Both organic and inorganic arsenic forms can be quantified.
5. Quality Assurance & Verification
• All results undergo strict internal and external quality control for precision.
6. Results Delivery
• Reports are available within 10 business days after lab receipt, securely delivered via our online portal.
7. Optional GP Consultation
• You may choose to book a GP review to interpret your arsenic levels and discuss possible detox or further investigation if elevated.

At-Home Blood Draw (UK-Wide Service)

1. Book Your Appointment
• Schedule your at-home or hotel phlebotomy visit online or by phone.
• Choose a date and time that suits your schedule, same-day or next-day appointments are often available in London and surrounding areas.
2. Professional Phlebotomist Visit
• A trained and certified phlebotomist arrives at your location equipped with sterile, single-use medical supplies.
• The service is discreet, convenient, and follows strict infection-control standards.
3. Sample Collection
• The phlebotomist draws a small venous blood sample (1–2 serum tubes) from your arm, the same as in-clinic.
• The process takes approximately 10 minutes and is comfortable, hygienic, and minimally invasive.
4. Sample Handling and Transport
• Your sample is labelled, sealed, and placed in a temperature-controlled biohazard container.
• It is then couriered directly to our UKAS-accredited laboratory the same day for analysis.
5. Laboratory Testing
• The lab performs the ELISA and immunofluorescence (IFA) assays to detect IgM and IgG antibodies for multiple arboviruses.
• All testing follows ISO 15189 quality standards to ensure precise results.
6. Results Delivery
• Results are typically available within 10 business days after lab receipt.
• You will be notified by email once your digital report is ready in your secure online account.
7. Optional GP Consultation
• If your test is positive or you have ongoing symptoms, you can book an optional GP consultation (via phone or video) for expert interpretation, travel advice, and next-step recommendations.

Your Arsenic (Urine) Test Results – Explained

Urine arsenic levels are measured in micrograms per litre (µg/L) or micrograms per gram of creatinine (µg/g creatinine) to account for urine concentration.

Typical UK reference ranges:

• Normal (no significant exposure): < 50 µg/L
• Moderate exposure: 50–200 µg/L
• High exposure: > 200 µg/L, may indicate toxic or occupational exposure
• Very high levels (>500 µg/L): Associated with acute poisoning; requires immediate medical evaluation.

If creatinine-corrected results are used (common in 24-hour collections):

• < 20 µg/g creatinine: Within normal range
• 20–50 µg/g: Possible low-level exposure
• > 50 µg/g: Excessive or toxic exposure

Interpretation notes:

• Seafood consumption can cause transient rises in organic arsenic, which is less toxic. Retesting after 48–72 hours of avoiding seafood can clarify this.
• Inorganic arsenic (from water or occupational sources) is far more dangerous and may require environmental investigation or chelation therapy.

Results are analysed under UKAS-accredited ISO 15189 standards, ensuring clinical accuracy.