Mycobacteria ( AAFB, TB Tuberculosis )

Microbiology

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Description

Patients with positive results for M. tuberculosis are an infection control risk

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Sample Type

Early morning sputum, urine or other appropriate specimen. Blood can be cultured ( Specific blood culture bottles are required ). Sputum can be tested for Mycobacterium tuberculosis complex using PCR to give a same day result after discussion with a Microbiology/Infectious Disease Consultant.

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Reference Range

NA

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Turnaround Time

AFB Microscopy - >90% within 24-48hrs. Culture 6 weeks - Significant results are reported as soon as practicable

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Testing Frequency

Daily

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External Notes

AFB microscopy results can be available in <4 hrs if required. For urine samples, large EMU containers are available from the department. EMU should not be sent as a routine screen - discuss with Microbiology medical staff. For Mycobacterial culture from blood please contact lab for correct bottles. Always give appropriate clinical information.

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Patient Preparation

Follow standard nursing procedures to obtain sample.

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See Also

SPUTUM CULTURE, INDUCED SPUTUM;BRONCHIAL WASHINGS / LAVAGE;LEGIONELLA INVESTIGATIONS ( Legionairres Disease, Atypical pneumonia )

Please note: the above information is subject to change and we endeavour to keep this website up to date wherever necessary.