Cobalt Blood Test
Also known as: Blood Cobalt Level Test, Cobalt Toxicity Test, Serum Cobalt Test, Cobalt Exposure Blood Test, Heavy Metal Cobalt Test
Cobalt Blood Test test available at DNA Labs India for ₹4,500. Uses ICP-MS (Inductively Coupled Plasma Mass Spectrometry) on Whole Blood samples. Results in Sample collected daily by 6 PM; report available the next day. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Ramarao Paidisetty
Consultant Biochemist · Reg: 21504
Last reviewed: September 7, 2026
Overview
The Cobalt Blood Test is used to detect and monitor elevated cobalt levels in the blood. It helps diagnose cobalt toxicity arising from occupational exposure, metal-on-metal implant debris, contaminated dietary sources, or excessive supplementation. The test assists physicians in evaluating unexplained cardiomyopathy, neuropathy, hypothyroidism, and sensorineural hearing loss in at-risk populations.
- Test Code
- 340
- CPT Code
- 83018
- ICD Code
- T56.4
- Price
- ₹4,500
- Sample Type
- Whole Blood
- Result Time
- Sample collected daily by 6 PM; report available the next day
- Fasting Required
- No
- Method
- ICP-MS (Inductively Coupled Plasma Mass Spectrometry)
Sample Collection
Patient must avoid mineral supplements, vitamin B12, and vitamin B complex for at least 3 days prior to specimen collection. If gadolinium or iodine-containing contrast media has been administered, wait at least 96 hours before collecting the specimen.
Method: Venipuncture with powderless gloves
Laboratory Analysis
Venipuncture must be performed using powderless gloves to prevent environmental cobalt contamination. A metal-free Royal Blue Top (K2EDTA) tube must be used for blood collection.
Report Delivery
Specimen should be shipped refrigerated. Do not freeze. Stability: Room temperature up to 6 hours; Refrigerated (2–8°C) up to 48 hours; Frozen samples are not accepted.
Timeline: Sample collected daily by 6 PM; report available the next day
Patient Instructions
About This Test
Who Should Get This Test
The Cobalt Blood Test is used to detect and monitor elevated cobalt levels in the blood. It helps diagnose cobalt toxicity arising from occupational exposure, metal-on-metal implant debris, contaminated dietary sources, or excessive supplementation. The test assists physicians in evaluating unexplained cardiomyopathy, neuropathy, hypothyroidism, and sensorineural hearing loss in at-risk populations.
How to Prepare
- Avoid mineral supplements, vitamin B12, and vitamin B complex for 3 days before the test
- Wait at least 96 hours after receiving gadolinium or iodine-based contrast media
- Phlebotomist must use powderless gloves during specimen collection
- Collect exactly 4 mL (minimum 2 mL) of whole blood
- Use only the metal-free Royal Blue Top (K2EDTA) tube supplied by LPL
- Ship specimen refrigerated; do not freeze
Doctor's Notes
Reviewed by Dr Ramarao Paidisetty — MBBS, MD (Biochemistry) · Reg. No. 21504
"Cobalt exposure is an under-recognised cause of unexplained cardiomyopathy, neuropathy, and thyroid dysfunction. Patients with hip or knee metal-on-metal implants, industrial workers in hard-metal or battery manufacturing, and those on long-term vitamin B12 injections (cobalamin) should be periodically screened. Early detection through a simple blood test allows timely intervention before irreversible organ damage occurs. If you experience persistent fatigue, shortness of breath, hearing loss, or joint pain—particularly after implant surgery—discuss cobalt testing with your physician."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Specimen collected in incorrect tube (non-metal-free tube)
- Specimen collected within 3 days of mineral supplement or B12 intake
- Specimen collected within 96 hours of contrast media administration
- Haemolysed specimen
- Frozen specimen
- Specimen received at lab after 48 hours of refrigerated storage
- Insufficient sample volume (less than 2 mL)
Understanding Your Results
Blood cobalt level is within the normal reference range for the general population. No evidence of significant cobalt exposure.
Status: Normal
Range: < 1.0 µg/L
Cobalt levels are above normal. May indicate mild exposure or early accumulation. Clinical correlation recommended; repeat testing and monitoring may be warranted.
Status: Borderline / Elevated
Range: 1.0 – 5.0 µg/L
Significantly elevated cobalt level indicating potential cobalt toxicity. Urgent clinical evaluation is recommended. Patients with metal-on-metal implants should be assessed for implant failure. Further workup including cardiac, thyroid, and neurological evaluation may be indicated.
Status: Elevated / Toxic
Range: > 5.0 µg/L
Consult a physician immediately if your cobalt blood level is above 1.0 µg/L, especially if you have a metal-on-metal joint implant, work in an industry with cobalt exposure, or are experiencing symptoms such as shortness of breath, chest pain, fatigue, hearing loss, joint pain, cognitive difficulties, or irregular heartbeat.
Limitations
- ⚠This test measures total cobalt in blood and does not differentiate between organic and inorganic cobalt species
- ⚠Results may be influenced by recent dietary intake or supplementation if pre-test instructions are not followed
- ⚠Single-point measurement may not reflect cumulative chronic exposure; serial monitoring may be required
- ⚠Reference ranges may vary between laboratories; clinical correlation is essential
- ⚠This test is not a substitute for comprehensive occupational health or implant surveillance evaluation
Risks & Considerations
- ●Minor bruising or discomfort at the venipuncture site
- ●Rare risk of fainting during blood draw
- ●Very slight risk of infection at the puncture site
Interfering Factors
- ●Recent intake of mineral supplements or vitamin B12 / vitamin B complex within 3 days prior to specimen collection
- ●Administration of gadolinium or iodine-containing contrast media within 96 hours prior to collection
- ●Use of non-metal-free collection tubes or powder-contaminated gloves during phlebotomy
- ●External contamination from stainless steel needles or environmental cobalt sources
- ●Haemolysed or improperly stored specimens
Compare With Similar Tests
| Test | Cobalt Blood Test | Lead Blood Test | Mercury Blood Test | Chromium Blood Test | Heavy Metal Panel |
|---|---|---|---|---|---|
| Comparison | Cobalt Blood Test |
Frequently Asked Questions
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