QUESTIONS FOR EXHIBIT

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QUESTIONS FOR EXHIBIT

• MYSTERIOUS RADIOPHARMACEUTICAL DISTRIBUTION

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QUESTION 1

• LIVER AND SPLEEN UPTAKE ON A BONE SCAN MAY BE DUE
  TO
• 1. FREE PERTECHNETATE
• 2. ALUMINUM IN ELUATE
• 3. MOLYBDENUM IN ELUATE
• 4. ANEMIA

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ANSWER QUESTION 1

• ALUMINUM IN THE ELUATE MAY CAUSE COLLOID
  FORMATION ALLOWING FOR LIVER AND SPLEEN UPTAKE

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QUESTION 2

• DIFFUSE BRAIN UPTAKE ON A BONE SCAN IS RARE.
  WHICH IS THE MOST LIKELLY MECHANISM?
• TECHNOLOGIST ERROR
• PREVIOUS BRAIN SCAN
• REDUCED HYDROLYZED TC-MDP
• RIGHT TO LEFT SHUNT

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ANSWER QUESTION 2

• WHEN AN UNUSUAL APPEARANCE IS NOTED, THE FIRST
  LINE OF CONSIDERATION IS A PREVIOUS SCAN.

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QUESTION 3

• IF KIDNEYS ARE POORLY SEEN ON A DMSA SCAN, WHICH
  IS THE MOST LIKELY CAUSE?
• 1. ACUTE TUBULAR NECROSIS
• 2. CORTICAL NECROSIS
• 3. BILATERAL INFARCTIONS
• 4. WAIT TIME OF 4 HOURS

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ANSWER QUESTION 3

• NONVISUALIZATION IS IN KEEPING WITH CORTICAL
  NECROSIS. IF BONES ARE VISUALIZED, A DMSA
  SUPERSCAN SHOULD BE CONSIDERED.