Chromium (Blood)
This test measures chromium levels in the blood. It helps assess environmental, occupational or implant-related metal exposure.
Turnaround time
1 day
Biomarkers count
1
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Details about Chromium (Blood)
What is the Chromium (Blood) Test?
The Chromium (Blood) test measures the concentration of chromium circulating in the bloodstream. Chromium is a trace element that exists in different forms, including trivalent chromium (an essential micronutrient in small amounts) and hexavalent chromium, which is toxic.
Blood chromium testing is primarily used to assess excess exposure, rather than nutritional status. Elevated levels may occur due to occupational exposure, environmental contamination, industrial contact or metal-on-metal medical implants.
This test is commonly used in toxicology, occupational health and monitoring of individuals with known exposure risk.
Why do I need a test for Chromium (Blood)?
You may need this test if there is concern about chromium exposure from your work environment, surroundings or medical devices. Chronic or high-level exposure can lead to systemic toxicity affecting the kidneys, liver, skin and respiratory system.
Testing allows early detection of elevated chromium levels and supports timely intervention to reduce ongoing exposure and prevent long-term complications.
Symptoms and scenarios where testing is recommended:
- Occupational exposure (metal plating, welding, manufacturing)
- Environmental or industrial contamination exposure
- Monitoring metal-on-metal joint implants
- Kidney or liver dysfunction of unclear cause
- Skin irritation or allergic reactions
- Respiratory symptoms linked to metal exposure
- Toxicology assessment
- Workplace health surveillance
Benefits of the Chromium (Blood) Test
- Detects excessive chromium exposure
Identifies elevated metal levels in the bloodstream. - Supports occupational health monitoring
Used in high-risk industrial environments. - Assesses implant-related metal release
Important for metal-on-metal joint monitoring. - Supports early toxicity detection
Enables intervention before severe damage occurs. - Guides exposure reduction strategies
Helps identify need for environmental or workplace changes. - Clinically relevant toxicology marker
Used in exposure and poisoning assessment. - Simple blood-based testing
Requires only a venous blood sample. - Supports long-term exposure monitoring
Useful for repeat surveillance over time.
Step-by-Step: How Testing Works
Choose your preferred testing method
You can attend one of our UK partner clinics or arrange a home or hotel visit with a mobile phlebotomist.
Option 1 – In-Clinic Blood Draw
- Select your nearest UK clinic and book an appointment.
- A clinician or phlebotomist collects a venous blood sample.
- The sample is analysed for chromium concentration.
- Results are delivered securely online.
Option 2 – Home or Hotel Phlebotomy (+£60)
- Book a UK-wide home or hotel visit at a convenient time.
- A trained phlebotomist collects your blood sample on-site.
- The sample is transported to the laboratory.
- Results are uploaded digitally without the need to travel.
Your Results Explained
Low Levels
Low blood chromium levels are generally not clinically significant.
Blood testing is not typically used to assess dietary chromium deficiency.
Normal Levels
Normal chromium levels suggest no significant recent exposure.
This supports a low risk of chromium-related toxicity.
High Levels
Elevated chromium levels indicate excessive exposure.
This may be due to occupational contact, environmental contamination or metal implants and requires clinical review.
UK reference ranges vary by laboratory and exposure context.
How It Works
Simple steps to get your results
Book Online
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
Get Your Results
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting & Hydration
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Medications & Supplements
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
Hormones & Menstrual Cycle
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.