Skip to content

Cobalt, Mass Concentration

Published: August 9, 2026Updated: August 17, 2026

Measures the amount of cobalt in a laboratory specimen. It may help evaluate suspected cobalt exposure or monitor exposure from supplements, medications, or occupational contact.

Quick summary

["This test measures cobalt in a specimen and may help identify or monitor unwanted cobalt exposure."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
87473-5
Short code
Cobalt Spec-mCnt
Synonyms
Cobalt Spec-mCnt
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
7
Ref high
56
Critical range
— – 500 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
84484
SNOMED
302773008
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

This test measures the concentration of cobalt, a naturally occurring trace element, in a sample. The specimen source depends on the specific laboratory order.

Why might I need this test?

Your clinician may order it if you have symptoms of excessive cobalt exposure, such as breathing or skin problems, or if you take cobalt-containing supplements or have possible workplace exposure. It may also be used to follow changes in exposure over time.

How is the test performed?

A specimen is collected using the method specified by the laboratory and analyzed to determine its cobalt concentration. The exact specimen type and laboratory method should be confirmed with the ordering clinician or testing laboratory.

How do I prepare for the test?

Follow the laboratory's instructions about the required specimen, collection timing, and any fasting requirements. Tell your clinician about supplements, medications, workplace exposure, or recent metal implants, and do not stop prescribed treatment on your own.

Reference range

Adult males: 7-56 U/L; Adult females: 7-43 U/LN/A

Specimen: serum

No special preparation required. Avoid fatty meals before the test if possible.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Cobalt

Frequently asked questions

What does a high cobalt level mean?
It may suggest exposure to or intake of more cobalt than expected. Your clinician will consider possible sources, symptoms, and the timing of specimen collection.
What specimen is used for this test?
The specimen source is not fully specified by the test abbreviation, so confirm it with the ordering clinician or laboratory. The collection container and preparation requirements depend on the specimen being tested.
Do I need to stop taking supplements before the test?
Do not stop supplements or medications without instructions from your clinician. Tell the healthcare team about all cobalt-containing products so the result can be interpreted correctly.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy