Which of the Following Is Injected into the Bloodstream to Trace

question 3

Multiple Choice

Which of the following is injected into the bloodstream to trace the flow of blood and detect possible constrictions or obstructions in the circulatory system?

• A) (¹⁸O)
• B) (¹³¹I)
• C) (¹²³I)
• D) (²⁴Na)
• E) (⁹⁹Tc)

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