Test Code CTBID Culture Referred for Identification, Mycobacterium and Nocardia, Varies
Reporting Name
Culture Refer for ID, MycobacteriumUseful For
Rapid identification to the species level for Mycobacterium species, Nocardia species, and other aerobic actinomycete genera and species from pure culture isolates
Reflex Tests
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
RMALM | Id MALDI-TOF Mass Spec AFB | No, (Bill Only) | No |
RTBSP | Id, Mtb Speciation, PCR | No, (Bill Only) | No |
ISMY | ID by 16S Sequencing | No, (Bill Only) | No |
LCTB | Id, MTB complex Rapid PCR | No, (Bill Only) | No |
Testing Algorithm
Reflex tests may be performed at an additional charge. All mycobacteria and Nocardia (including aerobic actinomycetes) submitted will be identified and billed as appropriate.
See Culture Referred for Identification Mycobacterium and Nocardia Algorithm.
Method Name
Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS)/16S rDNA Sequencing/Rapid Polymerase Chain Reaction (PCR)
Performing Laboratory
Mayo Clinic Laboratories in RochesterSpecimen Type
VariesShipping Instructions
1. See Infectious Specimen Shipping Guidelines.
2. Place specimen in a large infectious container (T146) and label as an etiologic agent/infectious substance.
Necessary Information
1. Specimen source is required.
2. Isolate description is required: Gram stain reaction, morphology, tests performed.
Specimen Required
Specimen Type: Mycobacterium species or aerobic actinomycetes organism in pure culture
Supplies: Infectious Container, Large (T146)
Container/Tube: Middlebrook (7H10 or 7H11) or Lowenstein-Jensen medium slant or in broth (eg, Mycobacteria Growth Indicator Tube [7H9] broth)
Specimen Volume:
Solid media: Visible growth of isolate
Isolate in broth media: ≥3 mL
Collection Instructions: Organism must be in pure culture, actively growing. Do not submit mixed cultures.
Additional Information: A minimum volume of 3 mL is recommended to perform all initial testing, this may include: stains, sub-culture media, nucleic acid probes, and any additional testing that may be required to determine the identification. If the broth sample volume is less than 3 mL, initial testing may be limited, and increased turnaround time is likely.
Specimen Minimum Volume
See Specimen Required
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Varies | Ambient (preferred) | |
Refrigerated |
Reject Due To
Agar plate | Reject |
Isolates other than Mycobacterium species or aerobic actinomycetes | Reject |
Special Instructions
Reference Values
Not applicable
Day(s) Performed
Monday through Sunday
CPT Code Information
Culture Referred for Identification, Mycobacterium
87118-Identification of mycobacteria
87158-Identification of mycobacteria by other methods (if appropriate)
87118 -Id MALDI-TOF Mass Spec AFB (if appropriate)
87153-Mycobacteria Identification by Sequencing (if appropriate)
87150-Id, Mtb Speciation, PCR (if appropriate)
87150- Id, MTB complex Rapid PCR (if appropriate)
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
CTBID | Culture Refer for ID, Mycobacterium | 543-9 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
CTBID | Culture Refer for ID, Mycobacterium | In Process |
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.Report Available
60 to 70 daysNY State Approved
YesForms
If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.