Question

which of the following diagnostic studies uses radiation? select all that apply. a x - ray b ultrasound c ct scan d nuclear medicine e mri

Explanation:

• X - ray: Uses electromagnetic radiation (X - rays) to create images of bones and some soft tissues.
• CT scan: A type of X - ray technology, so it also uses radiation. It takes multiple X - ray images from different angles and combines them using a computer.
• Nuclear medicine: Involves the use of radioactive substances (radiopharmaceuticals). These substances are introduced into the body (usually by injection, ingestion, or inhalation), and then the radiation they emit is detected to create images.
• Ultrasound: Uses high - frequency sound waves (not radiation) to create images of internal organs and structures.
• MRI: Uses a strong magnetic field and radio waves (not ionizing radiation) to generate detailed images of the body's internal structures.

Answer:

A. X - ray, C. CT scan, D. Nuclear medicine