Diagnostic Tests

Afb Rrna Detection Tma Bronchoalveolar Lavage


Afb Rrna Detection Tma Bronchoalveolar Lavage

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What is this test?

The Hologic Amplified Mycobacterium Tuberculosis Direct (MTD) Test is a target-amplified nucleic acid probe test for the in vitro diagnostic detection of Mycobacterium tuberculosis complex ribosomal ribonucleic acid (rRNA) in acid-fast bacilli (AFB) smear positive and negative concentrated sediments prepared from sputum (induced or expectorated), bronchial specimens (e.g., bronchoalveolar lavages or bronchial aspirates) or tracheal aspirates. The Amplified MTD test is intended for use only with specimens from patients showing signs and symptoms consistent with active pulmonary tuberculosis (TB). MTD is to be used as an adjunctive test for evaluating either AFB smear positive or negative sediments prepared using NALC-NaOH digestion-decontamination of respiratory specimens. Patients who are suspected of having pulmonary TB based on clinical evaluation and who have received no antituberculous therapy, less than 7 days of such therapy, or have not received such therapy in the last 12 months may be evaluated with this test. The MTD test should be performed only in laboratories proficient in the culture and identification of M. tuberculosis (Level II and III or extent 3 and 4). The MTD test must be performed in conjunction with mycobacterial culture. The MTD test utilizes Transcription-Mediated Amplification (TMA) and HPA to qualitatively detect M. tuberculosis complex rRNA. The MTD test will detect rRNA from both cultivable and non-cultivable organisms. Organisms of the M. tuberculosis complex include M. tuberculosis, M. bovis, M. bovis BCG, M. africanum, M. microti, M. canetti, and M. pinnipedii. The MTD test can detect all organisms within the M. tuberculosis complex.

Also known as Acid Fast Bacilli rRNA Detection Bronchoalveolar Lavage.

Test Preparation

No special preparation is needed for Afb Rrna Detection Tma Bronchoalveolar Lavage. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing Afb Rrna Detection Tma Bronchoalveolar Lavage. Your doctor depending on your condition will give specific instructions.

Understanding your test results

GenderAge groupsValue
UNISEXAll age groupsPositive in Tuberculosis
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