Los Angeles County
Department of Public Health Tuberculosis Control Program
2615 S. Grand Avenue, Room 507
Los Angeles, CA 90007
Phone: (213) 745-0800
Fax: (213) 749-0926
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Tuberculosis Control Program - Laboratory Reporting
Laboratory Responsibility for Reporting of Tuberculosis in California
What must be reported?
Microscopic, culture, immunologic, serologic, or other evidence suggestive of tuberculosis.
This includes but is not limited to:
All smears positive for AFB
A positive nucleic acid amplification test (NAAT) for Mtb
Identification of mycobacterial growth upon culture media or broth
Identification of mycobacterial growth as Mycobacterium tuberculosis complex, Mycobacterium tuberculosis, Mycobacterium bovis, M. africanum, M. canettii, M. microti
Histologic evidence consistent with tuberculosis
Drug susceptibility test results on cultures positive for Mycobacterium tuberculosis complex
To whom should reports be submitted?
Results should be submitted to the local health officer in the jurisdiction where the health care provider who first submitted the specimen is located
Reference laboratories are responsible for notifying BOTH the laboratory that forwarded the specimen for isolate testing AND the local health officer in the jurisdiction where the health care provider who submitted the specimen is located
Submit one positive culture for TB to the local public health laboratory
When should these results be reported to TB Control?
Within one working day from the time the health care provider or referring laboratory is notified of results
What information is required on the report?
Patient's name, identification number
Patient's age/date of birth, gender
Patient's telephone number (if known)
Provider's name, address, and telephone number
Date of specimen collection
Specimen accession number
Test performed and result
Date positive results were identified
The lab that first receives a specimen is responsible for obtaining the above information, and labs must forward this same information when transferring specimens between labs.
How is TB Control notified?
Written notification is required within one working day regardless of method of reporting.
Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and
is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition
of the website, which is the official version.