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Mycobacterium Tuberculosis:- Part 7 – Tuberculosis Test by ICT (Immunochromatography technique)

February 7, 2023Lab TestsMicrobiology

Table of Contents

Toggle
  • Tuberculosis Test by ICT
      • Sample for Tuberculosis Test by ICT
      • Indication for Tuberculosis Test by ICT
      • The principle of the method of Tuberculosis Test by ICT
      • Procedure for Tuberculosis Test by ICT:
        • Result

Tuberculosis Test by ICT

Sample for Tuberculosis Test by ICT

  • This is done in the serum of the patient.

Indication for Tuberculosis Test by ICT

  1. For the diagnosis of Tuberculosis.
  2. This is a serological method.

The principle of the method of Tuberculosis Test by ICT

  1. The ICT Tuberculosis test is an in vitro immunodiagnostic tool for detecting antibodies to Mycobacterium tuberculosis in serum, plasma, and other body fluids.
  2. The test utilizes 5 highly purified antigens, which are secreted by Mycobacterium tuberculosis during an active infection.

Procedure for Tuberculosis Test by ICT:

  1. When 30 µl of serum or plasma is added to the blue pad strip.
  2. Now the antibody will bind to these antigen lines.
    1. If human IgG against TB is present. Upon closure of the test card, anti-human IgG labeled with ‘colloidal gold’ particles will diffuse and binds to the bound human IgG antibodies producing one or more PINK lines.
    2. In the negative case, there will be no pink line.
    3. Also, run the control.
ICT for tuberculosis diagnosis

ICT for tuberculosis diagnosis

Result

  • Negative = In nontuberculous patients, there will be no Pink line.

Possible References Used
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