IID-32 Increase the proportion of culture-confirmed TB patients with a positive nucleic acid amplification test (NAAT) result reported within 2 days of specimen collection
About the Data
Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.
Number of patients with a positive NAAT result within 2 days of specimen collection
Number of all the culture confirmed cases of tuberculosis
From the National TB Surveillance System's standard case report form, Report of Verified Case of Tuberculosis (RVCT):
Nucleic Acid Amplification Test Result (select one):
- Not Done
For positive or negative results of nucleic acid amplification testing, enter the month, day, and year the first sputum specimen was collected.
For the first nucleic acid amplification test result reported positive for M. tuberculosis complex, enter the month, day, and year the result was reported by the laboratory.
Nucleic acid amplification tests are capable of detecting Mycobacterium tuberculosis in a specimen within 48 hours of collection. Concerns regarding sensitivity, cost, quality control, availability and special expertise requirements have hindered widespread use of such tests. Upgrading TB laboratory capabilities and facilities, improving training in state-of-the-art mycobacteriology, and evaluating proficiency should better enable laboratories to apply these rapid tests to the diagnosis of TB.
Any change to the objective text, baseline, target, target-setting method or data source since the Healthy People 2020 launch.
Additional resources about the objective
- Starks, A.M., T.L. Dalton, F. Tyrrell, B. Metchock. “Use of Nucleic Acid Amplification Tests (NAAT) by U.S. Public Health Laboratories (PHL) for detection of Mycobacterium tuberculosis complex in Clinical Specimens”. Poster presented as part of the North American Region of the International Union Against TB and Lung Disease, Orlando, Florida, 11-13 March 2010.
- Updated Guidelines for the Use of Nucleic Acid Amplification Tests in the Diagnosis of Tuberculosis. MMWR. January 16, 2009 / 58(01); 7-10.