Nausea is feeling an urge to vomit. It is often called "being sick to your stomach."| medlineplus.gov
X-rays are a type of electromagnetic radiation, just like visible light.| medlineplus.gov
Doctors use CT scans (or CAT scans) to look for broken bones, cancers, blood clots, and more. Learn about the CT scan and what to expect during one.| medlineplus.gov