Lab test

Cobalt, Blood Test

A cobalt blood test measures the level of cobalt, a metal that is part of vitamin B12 and is used in alloys, batteries, pigments, and some medical implants.

Typical price

From $249

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

A cobalt blood test measures the level of cobalt, a metal that is part of vitamin B12 and is used in alloys, batteries, pigments, and some medical implants. Elevated exposure can occur with metal-on-metal hip implants, hard-metal work, or industrial contact. Testing helps evaluate possible cobalt toxicity and is often requested for people with these exposures or related symptoms. Because cobalt can also come from supplements and diet, results are interpreted with your history.

• Cobalt A metal measured in blood to estimate recent cobalt exposure.

• People with metal-on-metal hip or joint implants
• Workers exposed to cobalt in hard-metal or alloy production
• Individuals taking cobalt-containing supplements or B12
• Patients being evaluated for symptoms that may relate to metal exposure

• Use the trace-element collection tube provided to avoid contamination
• Report any implants, occupation, and supplements
• Follow instructions about pausing cobalt-containing supplements
• Note the timing of collection relative to activity or implant history

An elevated cobalt level suggests increased exposure, which may come from an implant, occupation, supplements, or the environment. The result is interpreted with your symptoms, imaging, and device history. Normal levels generally reflect background exposure, though a single measurement may not capture long-term release. Discuss your cobalt result and what it may mean for you with a healthcare provider.

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