What scans are conducted using unfiltered Tc Sulfur Colloid?

• A. Brain function and thyroid function
• B. Liver/spleen function and gastric emptying
• C. Bone density and joint inflammation
• D. Muscle metabolism and respiratory function

Answer: (B)

The correct choice is focused on the specific applications of unfiltered Tc Sulfur Colloid in medical imaging. Unfiltered Tc Sulfur Colloid is primarily used for liver and spleen scans due to its properties that allow for visualization of these organs. This radiopharmaceutical is taken up by the reticuloendothelial system, which includes the liver and spleen, making it particularly effective in assessing their function.

In addition to liver and spleen function, it is also utilized in evaluating gastric emptying. This is because it can be ingested or administered to track the movement of food through the stomach, providing insights into gastric motility. The imaging process typically involves using gamma cameras to detect the radioactive emissions from the colloid, giving a clear view of how well these organs are functioning.

This application of Tc Sulfur Colloid is essential in diagnosing various conditions related to liver and splenic health, as well as gastrointestinal disorders related to gastric emptying. Understanding this use can aid in clinical decision-making and patient management in areas like gastroenterology and hepatology.