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Rubidium Serum Concentration

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

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

Quick summary

["Rubidium levels help assess rare metabolic or genetic conditions."]

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

Key facts at a glance

LOINC
25420-1
Short code
RUBV IgM Ser Ql LA
Synonyms
RUBV IgM Ser Ql LA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
la
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 Is This Test Done?

Your healthcare provider may order this test if you have symptoms or conditions linked to abnormal mineral metabolism, such as inherited disorders affecting electrolyte balance or rare genetic syndromes. It could also be part of a broader diagnostic workup for unexplained metabolic disturbances.

What Does the Result Mean?

Results are interpreted based on clinical context rather than a single reference range, as rubidium is not a commonly monitored mineral in routine care. Abnormal levels may suggest underlying metabolic or genetic conditions requiring further evaluation by a specialist.

Sample Collection and Preparation

A blood sample is drawn from a vein, typically in your arm. The serum portion is separated and analyzed using specialized laboratory techniques to measure rubidium concentration accurately.

Common Conditions Monitored

While not routinely checked, elevated or low rubidium levels may be associated with conditions like certain inherited metabolic disorders, electrolyte imbalances, or rare genetic syndromes. Your provider will discuss findings in relation to your specific health concerns.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Rubidium testing is primarily reserved for specialized clinical scenarios, such as research studies, genetic counseling, or evaluation of rare metabolic diseases. Routine screening for rubidium is not standard due to its low physiological relevance outside of targeted investigations.

Short name

Serum Rubidium Level

Frequently asked questions

When might I need this test?
Only if recommended by your doctor for conditions like unexplained metabolic issues, genetic testing, or research-related evaluations.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on laboratory processing and follow-up needs.
Is this test painful?
A blood draw may cause mild discomfort, but it is generally quick and well-tolerated. Most people experience minimal or no lasting effects.
  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