Ordering RecommendationRecommendations when to order or not order the test. May include related or preferred tests.
MnemonicUnique test identifier.
RIFABU
MethodologyProcess(es) used to perform the test.
Quantitative High Performance Liquid Chromatography
PerformedDays of the week the test is performed.
Varies
ReportedExpected turnaround time for a result, beginning when ARUP has received the specimen.
3-10 days
New York DOH Approval StatusIndicates test has been approved by the New York State Department of Health.
Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.
Specimen Required
Patient Preparation
Collect
Plain red. Also acceptable: Green (sodium heparin).
Specimen Preparation
Separate from cells ASAP or within one hour of collection. Transfer 2 mL serum or plasma to an ARUP Standard Transport Tube and freeze immediately. (Min: 0.5 mL) Test is not performed at ARUP; separate specimens must be submitted when multiple tests are ordered.
Storage/Transport Temperature
CRITICAL FROZEN.
Unacceptable Conditions
Severely hemolyzed or thawed specimens.
Remarks
Include drug dose amount, frequency, method, and date and time of last dose prior to draw on requisition form.
Reference IntervalNormal range/expected value(s) for a specific disease state. May also include abnormal ranges.
By report
Interpretive DataBackground information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
Compliance Category
Performed by non-ARUP Laboratory
NoteAdditional information related to the test.
If the exact time of both the dose and the blood draw are not accurately recorded, accurate interpretation of the concentration will not be possible.
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.
Mycobutin (Antimicrobial Level - Rifabutin by HPLC, Serum or Plasma
Antimicrobial Level - Rifabutin by HPLC, Serum or Plasma
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