Question

What type of radio activity is most often used in radio pharmaceuticals?

• A. Gamma-rays
• B. Alpha-particles
• C. Beta-emissions
• D. X-rays

Hint:

Beta-emissions provide the right balance of energy for many therapeutic and tracer applications.

Answer 1

The Correct Option is C

Step 1: Concept
Radiopharmaceuticals are medicinal formulations containing radioisotopes used for diagnosis or therapy.

Step 2: Meaning
Different types of radiation (Alpha, Beta, Gamma) have different penetration powers and ionization energies.

Step 3: Analysis
Gamma-rays are frequently used for diagnostic imaging (like Technetium-99m). However, in terms of broader pharmaceutical applications including internal therapy and various tracer studies, beta-emissions are highly prevalent.

Step 4: Conclusion
Beta-emissions are categorized as the most commonly utilized radioactive type in pharmaceutical contexts.

Final Answer: (C)