- 2
- Introduction
- Learning Objectives
- Recognizing Persons And Groups At High Risk For Tuberculosis
- Identifying People to be Further Evaluated for Tuberculosis
- Evaluating Patients Presenting with Symptoms Suggestive of TB
- Medical History and Physical Exam
- Screening and Diagnostic Tests
- Collecting Sputum for Smear Examination
- Point of Care Testing
- Other Sputum Collection Methods
- Case Detection of Tuberculosis and HIV
- People with Suspected Drug-Resistant TB
- Pediatric Diagnosis
- Case Reporting
- Contact Investigation
- Target Groups for Isoniazid Preventive Therapy
- Summary Module 2
Diagnosis of Tuberculosis
2.10
Screening and Diagnostic Tests
b
Conventional Drug Susceptibility TestTo confirm MDR-TB or any type of drug resistance a patient should have a DST. If a test shows resistance to a specific anti-TB drug, the drug should not be used in the patient’s regimen. Usually, drug susceptibility testing is done on first line drugs, although some laboratories have second line capabilities. Generally DST is done from a cultured specimen although there are direct tests that allow DST from sputum. |
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