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Rubidium in Serum (Mass Concentration)

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of rubidium, a trace mineral, present in your blood serum. It may be used in specialized medical evaluations, including certain genetic or metabolic studies.

Quick summary

["Rubidium levels in blood can help assess rare genetic conditions or metabolic disorders."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
8015-0
Short code
RUBV IgM Ser-aCnc
Synonyms
RUBV IgM Ser-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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

Why Might This Test Be Ordered?

Your healthcare provider may recommend this test if you have symptoms or a family history suggestive of conditions like congenital rubidium disorders, mitochondrial disorders, or other rare metabolic syndromes. It may also be part of a broader genetic testing panel.

What Does This Test Involve?

A blood sample is drawn from a vein, typically in your arm. The blood is processed to separate serum, which is then analyzed for rubidium concentration using a specialized laboratory technique.

What to Expect Before the Test

No special preparation is usually needed, but inform your provider about any medications you’re taking, as some may affect blood chemistry. Avoid alcohol before testing if directed.

What to Expect After the Test

You may experience mild bruising or discomfort at the injection site, which typically resolves within a few days. Follow-up instructions from your provider will guide next steps based on your results.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Elevated or low rubidium levels can indicate underlying genetic or metabolic disorders. While rubidium is not as commonly monitored as other minerals like sodium or potassium, abnormal results may prompt further genetic testing or evaluation of associated symptoms.

Short name

Serum Rubidium Level

Frequently asked questions

What Causes Abnormal Rubidium Levels?
Abnormal results may stem from inherited genetic mutations affecting rubidium metabolism, certain mitochondrial disorders, or rare metabolic syndromes. Your provider will consider your medical history and symptoms.
How Are Rubidium Levels Interpreted?
Results are compared to reference ranges specific to your lab, though these may not always be widely published due to its rarity. Your healthcare provider will discuss findings in the context of your overall health.
Can lifestyle changes affect rubidium levels?
There are no well-established dietary or lifestyle factors that directly influence rubidium levels in blood, as it is not a nutrient commonly regulated by diet. Focus on managing underlying conditions if identified.
  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 16, 2026. · Read our editorial policy