Examples of each type

• What do non-invasive diagnostic tests avoid doing to the body?

  Breaking the skin
• An ultrasound uses sound waves
• MRI uses magnetic fields and radio waves to create images of internal body parts.
• Blood pressure measurement assesses the force of blood against artery walls
• What does an electrocardiogram (ECG) measure?

  Heart electrical activity
• What is a key characteristic of invasive diagnostic tests?

  Breaking the skin
• Invasive diagnostic tests often require anesthesia due to the potential pain involved.
• A biopsy involves taking a tissue sample
• What does an endoscopy use to examine internal organs?

  A camera
• What is a risk associated with invasive diagnostic tests?

  Infection
• Non-invasive diagnostic tests are usually less expensive than invasive tests.