Radioisotope scans

Radiosisotope scans

Q. 1

In radionuclide imaging, the most useful radiophar­maceutical agent for skeletal imaging is:

March 2012, March 2011

 A

Tc-99m linked to methylene diphosphonate (99m Tc-MDP)

 B

Tc-99 pyrophosphate

 C

Tc-sulphur colloid (99m Tc-Sc)

 D

Gallium 67

Q. 1

In radionuclide imaging, the most useful radiophar­maceutical agent for skeletal imaging is:

March 2012, March 2011

 A

Tc-99m linked to methylene diphosphonate (99m Tc-MDP)

 B

Tc-99 pyrophosphate

 C

Tc-sulphur colloid (99m Tc-Sc)

 D

Gallium 67

Ans. A

Explanation:

Ans: A i.e. Tc-99m linked to methylene diphosphonate (99m Tc-MDP)

Radiopharmacological agents and uses

  • Tc-99m linked to methylene diphosphonate (99m Tc-MDP) is used in bone imaging
  • Tc-99 pyrophosphate is used for defining hot spots in myocardial infarction/avid infarct imaging
  • 99m Tc-Sc is used in imaging of reticuloendothelial system (liver/ spleen), gastric emptying, GI bleeds
  • Gallium 67 is used for tumours/abscess

Q. 2

In radionuclide imaging the most useful radio pharmaceutical for skeletal imaging is:

 A

Gallium 67 (67Ga)

 B

Technetium-sulphur-colloid (99mTc-Sc)

 C

Technetium-99m (99mTc)

 D

Technetium-99m linked to Methylene dis-phos-phonate (99mTc-MDP)

Q. 2

In radionuclide imaging the most useful radio pharmaceutical for skeletal imaging is:

 A

Gallium 67 (67Ga)

 B

Technetium-sulphur-colloid (99mTc-Sc)

 C

Technetium-99m (99mTc)

 D

Technetium-99m linked to Methylene dis-phos-phonate (99mTc-MDP)

Ans. D

Explanation:

Ans. Technetium-99m linked to Methylene dis-phos-phonate (99mTc-MDP)


Q. 3

Which radionuclide is best suited for measurement of GFR?

 A

DTPA

 B

DMSA

 C

Orthoiodohippurate

 D

EDTA

Q. 3

Which radionuclide is best suited for measurement of GFR?

 A

DTPA

 B

DMSA

 C

Orthoiodohippurate

 D

EDTA

Ans. A

Explanation:

Ans. DTPA

Quiz In Between



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