Gelification test for Tuberculosis

What sample is needed for Mycobacterium tuberculosis diagnosis?

1. This test is done in the serum.
2. EDTA blood can be used.

What are the indications for a Gelification test (Glutaraldehyde test)?

1. For diagnosing pulmonary tuberculosis as a screening test.
2. This is a simple, rapid, and inexpensive screening test.

How will you summarize the pathophysiology of Tuberculosis?

1. Tuberculosis is a chronic and debilitating disease.
2. This is seen in two forms:
   1. Primary tuberculosis. This will give the primary complex.
   2. Secondary or post-primary tuberculosis. Involves the lung, with the most common site being the apices of the lung.

What are the signs and symptoms of Tuberculosis?

• Signs and symptoms are summarized below.

How will you discuss the procedure for the Gelification test (Glutaraldehyde test)?

1. EDTA-blood and 2.5% glutaraldehyde solution were mixed,
2. A shorter gelification time was observed in blood from patients with pulmonary tuberculosis.
3. This test is advised in clinically suspected cases of tuberculosis where chest X-ray and clinical history favor the diagnosis of Pulmonary tuberculosis.
4. This test is helpful in sputum AFB-negative cases.

How will you report the Gelification test (Glutaraldehyde test)?

1. Shorter time in pulmonary tuberculosis than in non-tuberculous patients.
2. The glutaraldehyde test gives a sensitivity of 89% and a specificity of 95%.
3. In one of the studies, it was found:
   1. For pulmonary TB, sensitivity was 96.6%, and specificity was 82.1%.
   2. For extrapulmonary TB, sensitivity was 91.2%, and specificity was 77.4%.

What are the advantages of the Gelification test (Glutaraldehyde test)?

1. If there is no facility for TB culture and state-of-the-art radiology, this method, along with Sputum for AFB and simple X-ray, is cost-effective and reliable.
2. No sophisticated instruments are needed.

Questions and answers: