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Acid Fast Bacilli (AFB) Smear

Acid Fast Bacilli (AFB) Smear

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Pre Requisites
No special preparation required

Sample Type
Tissue/ Sputum/ Urine/ Fluid/ Pus/ Others in Sterile container

The AFB smear test looks for special bacteria called acid-fast bacilli, which are linked to diseases like tuberculosis. This test is crucial for detecting tuberculosis and similar infections early on. Acid-fast bacilli are special because they don't lose colour when exposed to acid-alcohol after staining. This means they stay red when seen under a microscope.

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Test Details

Acid Fast Bacilli (AFB) Smear

Frequently asked questions

AFB bacteria, which are frequently linked to tuberculosis (TB) and other AFB illnesses, can be found
with the Acid-Fast Bacilli Smear Test.

Sputum, bronchoalveolar lavage fluid or other bodily fluids are frequently used to obtain the
sample for the Acid-Fast Bacilli Smear Test. A clean container, such as a sterile container or one
provided by the lab, is used to collect the sample.

The Acid-Fast Bacilli Smear Test is a non-invasive procedure that normally goes smoothly and does
not hurt or make you feel uncomfortable.

An Acid-Fast Bacilli Smear Test typically takes a few hours to a day to get the results.

Acid-Fast Bacilli Smear Test outcomes are typically classified as either negative or positive. A
positive result indicates that AFB bacteria were found in the sample, whereas a negative result
indicates that AFB bacteria could not be found in the sample.

The Acid-Fast Bacilli Smear Test is not a conclusive diagnosis of TB or another AFB infection; rather,
it is a preliminary test. To confirm the diagnosis and identify the precise kind of AFB infection,
additional diagnostic tests, such as a culture test or a molecular test, may be required.

With the Acid-Fast Bacilli Smear Test, false-negative results can happen, especially in people whose
samples include little AFB bacteria. In certain situations, more testing could be required to verify the
findings.
Any queries or worries you may have regarding the Acid-Fast Bacilli Smear Test should be brought
up with your doctor, who can answer them and help you through the diagnostic process.

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