Search our extensive Laboratory Test Directory to find test codes, ordering recommendations, specimen stability information, Test Fact Sheets, and more.
Pyrazinamide (PZA) testing is suspended due to issues with the manufacturer’s kit. ARUP will continue testing the other first-line drugs: rifampin, isoniazid, and ethambutol. If PZA susceptibility testing is required during this test delay, contact your local public health laboratory or the CDC for pncA gene testing for PZA resistance mutations.
0060999
Acid-Fast Bacillus (AFB) Identification
MC AFBID
Choose the Right Test
ARUP Consult® assists with test selection and interpretation
Recommendations when to order or not order the test. May include related or preferred tests.
Identify mycobacterial isolates, including requests for speciation within the M. tuberculosis complex.
New York DOH Approval Status
Indicates whether a test has been approved by the New York State Department of Health.
This test is New York state approved.
Specimen Required
Patient PreparationInstructions patient must follow before/during specimen collection.
CollectSpecimen type to collect. May include collection media, tubes, kits, etc.
Actively growing organism, in pure culture.
Specimen PreparationInstructions for specimen prep before/after collection and prior to transport.
Place each specimen in an individually sealed bag. Transport sealed container with pure culture on solid or in liquid media.
Storage/Transport TemperaturePreferred temperatures for storage prior to and during shipping to ARUP. See Stability for additional info.
Room temperature. If culture is suspected of being a microorganism identified on the IATA list as an infectious substance affecting humans, submit specimen according to Infectious Substance, Category A, shipping guidelines.
Unacceptable ConditionsCommon conditions under which a specimen will be rejected.
Mixed cultures or non-viable organisms. Organisms submitted on an agar plate.
RemarksAdditional specimen collection, transport, or test submission information.
Indicate source of organism and any other pertinent information, such as the growth rate of the organism.
StabilityAcceptable times/temperatures for specimens. Times include storage and transport time to ARUP.
Matrix-Assisted Laser Desorption Ionization-Time of Flight (MALDI-TOF) Mass Spectrometry/Polymerase Chain Reaction/Sequencing
Performed
Days of the week the test is performed.
Sun-Sat
Reported
Expected turnaround time for a result, beginning when ARUP has received the specimen.
Varies Depends on organism growth.
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Complete identification of clinically significant isolates.
Interpretive Data
May include disease information, patient result explanation, recommendations, or details of testing.
For identification by DNA sequencing and MALDI-TOF:
Compliance Category
Laboratory Developed Test (LDT)
Note
Additional information related to the test.
If the isolate M. tuberculosis complex is to be speciated, enter this information in the comment field and ship Category A. A processing fee will be billed for all organisms submitted that are not in pure culture, as indicated in specimen requirements. Identification of AFB isolates is billed by individual tests performed.
Hotline History
N/A
CPT Codes
The 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.
CPT codes for identification vary based on method.
* 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.
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