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 main purpose of the Thirteenth Amendment was to abolish slavery.
According to research, approximately<u> one half </u>of drivers who crashed after falling asleep did not detect any signs of drowsiness before crashing.
In the United States, drowsy driving is a serious issue. The risk, danger, and frequently deadly outcomes of driving when fatigued are concerning. Driving while sleepy or fatigued is known as drowsy driving. This typically occurs when a driver has not slept enough, but it can also occur as a result of untreated sleep disorders, drugs, alcohol usage, or shift employment.
Nobody can pinpoint the precise moment when sleep takes over their body. Although it is obviously harmful to fall asleep while driving, being sleepy still has an impact on your ability to drive safely. You become less able to pay attention to the road when you are sleepy. It impedes quick steering or braking responses and impacts your capacity to make wise decisions.
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