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Author Question: Which of the following is the soft metallic element used as a radiopaque X-ray dye? A) barium B) ... (Read 82 times)

frankwu

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on: Jun 27, 2018
Which of the following is the soft metallic element used as a radiopaque X-ray dye?
 
  A) barium
  B) gallium
  C) technetium
  D) iodine

Question 2

Food exits the stomach by passing through the:
 
  A) cardiac sphincter
  B) lower esophageal sphincter
  C) pyloric sphincter
  D) hepatic sphincter
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katieost

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Reply #1 on: Jun 27, 2018
Answer to Question 1

A
Explanation: Barium is the soft metallic element used as a radiopaque X-ray dye. Radioisotopes of gallium, technetium, and iodine are examples of substances used in nuclear medicine.

Answer to Question 2

C
Explanation: Food exits the stomach through the pyloric sphincter. Food enters the stomach through the lower esophageal, or cardiac, sphincter. There is not a hepatic sphincter on the stomach.


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