AFB Culture Report (Sputum)

The AFB (Acid-Fast Bacilli) Culture Test for Sputum is a specialized microbiological investigation used to detect and identify acid-fast bacteria, particularly Mycobacterium tuberculosis, in a sputum sample.

The test involves culturing the submitted specimen under suitable laboratory conditions to identify the presence of mycobacteria. It helps healthcare professionals investigate suspected pulmonary tuberculosis (TB) and other respiratory mycobacterial infections.

What Does This Test Check?

• Presence of Acid-Fast Bacilli (AFB) in sputum

• Growth of Mycobacterium species

• Possible pulmonary tuberculosis infection

• Other mycobacterial respiratory infections

Sample Requirements

• Sample Type: Sputum

• Sample Quantity: As specified by the laboratory

• Collection Container: Sterile, leak-proof specimen container

• Test Category: Laboratory – Microbiology

Patient Preparation

• Follow the laboratory's specific collection instructions.

• Inform your healthcare provider about ongoing antibiotic or anti-tuberculosis treatment.

• Collect a deep-cough sputum specimen rather than saliva.

• Avoid contamination during collection.

• Submit the sample according to laboratory transportation instructions.

Sputum Collection Instructions

1. Collection Time: Early morning collection may be preferred as instructed by the laboratory.

2. Rinse your mouth with plain water before collection.

3. Take a deep breath and cough deeply from your chest.

4. Collect the sputum directly into the sterile container.

5. Avoid collecting saliva or nasal secretions.

6. Close the container securely and deliver it to the laboratory promptly.

Relevant Conditions

• Pulmonary Tuberculosis

• Respiratory Mycobacterial Infections

• Other Acid-Fast Bacilli Infections

Important Information

AFB culture may take several weeks because mycobacteria grow slowly. A negative culture result does not always exclude tuberculosis.

Results should be interpreted by a qualified healthcare professional alongside clinical symptoms and other investigations.

Please confirm test availability, sample quantity and collection requirements with the laboratory before booking.