Which diagnostic test is recommended for patients suffering from AIDS?
HIV is the causative agent of AIDS.
The presence of this virus in the patient can be tested with the help of enzyme linked immuno-sorbent assay (ELISA) which requires a blood sample of the patient.
This technique is based on the principle of antigen-antibody interaction in which the presence of antibodies that the body produces against viral invasion are detected.
Magnetic resonance imaging (MRI) is the diagnostic method which works by producing strong magnetic fields. Any abnormality can be tested by comparing it with the normal MRI image of a cell or a tissue. For example, brain tumour, brain injury etc.
A Mantoux test is a skin test that is used to detect infection by Mycobacterium tuberculosis (TB).
Widal test is used to confirm typhoid fever. The Widal test is a serological test which detects antibodies against O antigens (outermost portion of the bacteria’s surface covering) and H antigens (part of flagella).