The AFB Smear test is used to detect the presence of acid-fast bacteria (AFB) in sputum, which may indicate a mycobacterial infection such as tuberculosis (TB). During the test, a sample of your sputum (thick mucus coughed up from the lungs) is spread on a glass slide and examined under a microscope. You may need the AFB smear test if you have symptoms of a lung infection like a chronic cough, blood in sputum, or weight loss; if you’ve had a positive TB test and are at high risk due to conditions like acquired immunodeficiency syndrome (AIDS) or high-risk environments; if you show signs of extrapulmonary TB affecting other body parts; or if you're being treated for TB to check treatment effectiveness and infectiousness. This test can reveal potential signs of a TB infection. However, an AFB Smear alone cannot confirm a diagnosis but is useful for identifying cases that may require further testing. If you live in Bangalore and are experiencing signs of a TB infection, get an AFB Smear test today. This will help quickly identify if you have a mycobacterial infection, allowing for timely diagnosis and treatment.

• Prerequisites: Fasting is not necessary, a blood sample is required for the AFB Smear test.

• Best Time to Get Tested: The test can be taken at any time of the day unless otherwise advised by a doctor.

• When Recommended: To be conducted as per the doctor’s prescription.

• Cautions: No specific precautions are required before the test.

Diagnoses tuberculosis by detecting acid-fast bacilli in a sample, critical for confirming TB and guiding treatment.