Part A: Expedited Reading (15 minutes)
You are given four short texts (A–D) related to diagnostic imaging. Answer the questions using information from the texts.
Text A
MRI scans are ideal for soft tissue evaluation, including brain, spinal cord, and joints. They do not use ionizing radiation and are contraindicated in patients with metallic implants or pacemakers.
Text B
CT scans provide detailed cross-sectional images and are preferred for trauma, lung pathology, and abdominal emergencies. They involve ionizing radiation and contrast agents may cause allergic reactions.
Text C
Ultrasound is a non-invasive imaging technique commonly used in obstetrics, abdominal scans, and vascular assessments. It is portable and safe for repeated use but limited in deep tissue visualization.
Text D
X-rays are quick and cost-effective for assessing bone fractures, chest infections, and dental issues. They use low-dose radiation and are often the first-line imaging in emergency settings.
