Quick highlights
- Supportive marker used in selected hematology and immune monitoring contexts
- Kidney clearance affects levels—interpret with creatinine/eGFR
- Not diagnostic alone; clinician correlation essential
- No fasting; simple serum blood test
- Often reviewed with CBC and other markers in specialist care
- Useful for monitoring trends when ordered
- Inflammation/infection can influence values—share recent illness history
- Home blood collection available in many service areas
- Clear limitations reduce misinterpretation
- SEO coverage: beta-2 microglobulin test, B2M blood test, hematology marker
What’s included
Preparation
- Book blood draw (home or lab)
- No fasting required unless combined tests require fasting
- Disclose kidney disease history and current medicines
- Inform clinician about recent infections/inflammation
- Collect serum sample via trained phlebotomist
- Download report from <a href='/my-account/'>View reports</a>
- Review with clinician along with kidney function tests
- Follow clinician advice for repeat testing if monitoring
FAQs
A small protein present on many cells; blood levels can be used as supportive information in selected clinical contexts.
No.
Yes. Reduced kidney clearance can raise levels; clinicians interpret with creatinine/eGFR.
No. It is not diagnostic by itself and must be interpreted by clinicians within a full evaluation.
In selected monitoring or evaluation pathways where it can add supportive information.
Yes, inflammation/infection can influence levels; disclose recent illness.
Often same day or within 24 hours.
Serum blood sample.
Yes in many service areas.
Do not stop prescribed medicines unless instructed; disclose all medications.
Creatinine/eGFR, CBC, and other specialist-directed markers.
Yes, if your clinician is tracking trends.
Download from <a href='/my-account/'>View reports</a>.
High values require clinician interpretation with kidney function and clinical context; do not self-diagnose.
Notes
Marker levels vary with renal and immune status.
