Please be more specific and give more details to the question
Answer: Radioactively-labeled materials
Explanation: nuclear medicine is a medical specialty that uses radioactive tracers to diagnose and treat different diseases. Radioactive tracers are materials that can vary according to the purpose of the method. For most diagnostic, the radioactive tracer is administered by intravenous injection. However it may also be administered by inhalation, by oral ingestion, or by direct injection into an organ.
SPECT scans are primarily used to diagnose and track the progression of heart disease, and the major purpose of PET scans is to detect cancer and monitor its progression, response to treatment, and to detect metastases. This two methods are the most used in nuclear medicine.
The queen decides who is the prime minister
the only subjects taught then was reading and writing with special cooking and cleaning classes for young ladies. So to answer your question math, science, and any language other than English were not taught. Also art, gym ,and music were not offered as well.
<span>The House of Representatives is reapportioned every ten years following each national census.</span>