Description
Sputum, NA, Fasting or Non Fasting: As suggested by doctor
Sample Required:
Sputum sample (mucus coughed up from the respiratory tract) is collected for the test.
Test Time:
Results are usually available within a few hours to a day after sample collection.
Test Normal Range:
The normal range does not apply to this test. The presence of acid-fast bacilli (AFB) in the sputum sample suggests a potential tuberculosis infection.
What is the Test?
The AFB Stain, Sputum test is a microscopic examination of sputum to detect the presence of acid-fast bacilli (AFB). AFB are characteristic of mycobacteria, including Mycobacterium tuberculosis, the causative agent of tuberculosis.
Test Procedure:
A sputum sample is collected in a sterile container and then processed for staining using the Ziehl-Neelsen stain. The stained slide is examined under a microscope for the presence of red-stained AFB, which appear against a blue background.
When to Take the Test:
This test is ordered when there is a suspicion of tuberculosis infection in the respiratory tract. It is commonly used to diagnose pulmonary tuberculosis.
Who Should Take This Test:
Individuals with symptoms of respiratory infections, such as persistent cough, sputum production, and chest pain, where tuberculosis infection is suspected, may undergo this test.
Precautions for Exceptional Cases:
Pregnant individuals and those with compromised immune systems should inform their healthcare provider before taking the test.
FAQs:
Q1: Can I collect sputum at home for this test?
A: Sputum should ideally be collected under medical supervision to ensure proper technique and sample quality.
Q2: How is sputum collected for the test?
A: Sputum is collected by coughing deeply and expelling the mucus into a sterile container provided by the healthcare provider.
Q3: Is this test used only for diagnosing tuberculosis?
A: While it is commonly used for diagnosing tuberculosis, the presence of AFB can also indicate other mycobacterial infections.
Q4: Can tuberculosis be cured if detected through this test?
A: Yes, tuberculosis detected through this test can often be treated with a combination of antibiotics. Early detection and treatment are crucial.
Q5: Can sputum culture be performed alongside AFB staining?
A: Yes, sputum culture is often performed in conjunction with AFB staining to confirm the diagnosis and identify the specific strain of mycobacteria.
