Ordering RecommendationRecommendations when to order or not order the test. May include related or preferred tests.
Evaluate renal tubular damage. Monitor exposure to mercury and cadmium.
MnemonicUnique test identifier.
B2M U
MethodologyProcess(es) used to perform the test.
Quantitative Chemiluminescent Immunoassay
PerformedDays of the week the test is performed.
Sun-Sat
ReportedExpected turnaround time for a result, beginning when ARUP has received the specimen.
Within 24 hours
New York DOH Approval StatusIndicates test has been approved by the New York State Department of Health.
This test is New York DOH approved.
Specimen Required
Patient Preparation
Void the urinary bladder, then drink a large glass of water and collect a urine specimen within 1 hour.
Collect
Random urine.
Specimen Preparation
Transfer one 3 mL aliquot from a well-mixed random collection to an ARUP Standard Transport Tube. (Min: 1 mL) If pH is greater than 8, lower pH to 6-8 by adding 1M HCL. If pH less than 6, increase pH to 6-8 by adding 5% NaOH. Titrate with appropriate preservative until pH of 6-8 has been reached. Record the pH on the transport tube and test request form.
Reference IntervalNormal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Effective February 18, 2014
Test Number
Components
Reference Interval
Beta-2-Microglobulin, Urine
Effective February 18, 2014 0-300 µg/L
Beta-2-Microglobulin, ratio to CRT
0-300 µg/g CRT
Interpretive DataBackground information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
No compliance statements are in use for this test.
NoteAdditional information related to the test.
Hotline History
N/A
CPT CodesThe American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
AliasesOther names that describe the test. Synonyms.
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