Question

A certain patient is suspected to be suffering from acquired immunodeficiency syndrome. Which diagnostic technique will you recommend for its detection?

• A. MRI
• B. ELISA
• C. Ultrasound
• D. WIDAL

Answer 1

The correct option is B

ELISA

The correct option is B.

Explanation of correct option:

1. Acquired immunodeficiency syndrome (AIDS) refers to a deficiency of the immune system that is acquired during an individual’s lifetime.
2. It is caused by a type of retrovirus called Human Immunodeficiency Virus (HIV).
3. Enzyme-linked immunosorbent assay (ELISA) is a diagnostic technique that is widely used to detect HIV.
4. The main principle of ELISA is based on antigen-antibody interaction.
5. The technique uses enzyme conjugates that bind to the antibody specific to HIV.
6. A substrate is then added that generates color in response to an enzymatic reaction.

Explanation of incorrect option:

Option A:

Magnetic resonance imaging (MRI) is a diagnostic technique that is used in to obtain images of internal body parts.

Option C:

Ultrasound is a technique that uses ultrasonic waves to generate images of internal body organs.

Option D:

WIDAL test is used to diagnose typhoid fever that is caused by Salmonella typhi.

Final answer: A certain patient is suspected to be suffering from acquired immunodeficiency syndrome. The technique that can be used to detect the disease is ELISA.