Home
HelpTest Code CTBBLM Mycobacterial Culture, Blood
Additional Codes
| Mayo | CTBBL |
| Epic ID | LAB246 |
Specimen Type
Whole bloodShipping Instructions
Specimen must be processed within 7 days of collection.
Necessary Information
Specimen source is required.
Specimen Required
Container/Tube:
Preferred: Green top (sodium or lithium heparin)
Acceptable: SPS (sodium polyanethol sulfonate)
Specimen Volume: 8 to 10 mL per culture
Collection Instructions:
1. Send whole blood specimen in original tube.
2. SPS tubes are acceptable, but not preferred.
3. Note: SPS tubes must be clearly labeled as SPS. If label is obscured, sample may be canceled, as ACD (yellow top) is not an acceptable tube type.
Specimen Minimum Volume
5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole blood | Ambient (preferred) | 7 days |
| Refrigerated | 7 days |
Transport at room temperature in original tube.
Reject Due To
| Blood Culture bottles (eg, BACTEC mycoF Lytic, VersaTrek) Isolator Clotted |
Reject |
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Method Name
Continuously Monitored Automated Broth Culture Instrument with Conventional Methods for Identification of Mycobacteria
Testing Algorithm
When this test is ordered, the reflex tests may be performed at an additional charge.
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| ISMY | ID by 16S Sequencing | No, (Bill Only) | No |
| RMALM | Id MALDI-TOF Mass Spec AFB | No, (Bill Only) | No |
| RTBSP | Id, Mtb Speciation, PCR | No, (Bill Only) | No |
| LCTB | Id, MTB complex Rapid PCR | No, (Bill Only) | No |
Useful For
Diagnosing mycobacteremia
Day(s) Performed
Monday through Sunday
Report Available
49 daysReference Values
Negative
If positive, mycobacteria are identified.
A final negative report will be issued after 42 days of incubation.
CPT Code Information
87116-Mycobacterial Culture
87118-Id MALDI-TOF Mass Spec AFB (if appropriate)
87150-Id, Mtb Speciation, PCR (if appropriate)
87153-Mtb PZA Confirmation, pcnA sequence (if appropriate)
87153-Mycobacteria Identification by Sequencing (if appropriate)
87150- Id, MTB complex Rapid PCR (if appropriate)