Why is furosemide administered during renal imaging?

Why is furosemide administered during renal imaging?

• A. To relieve abdominal pain
• B. To enhance kidney filtration rate
• C. To rule out uretropelvic obstruction
• D. To increase urine output

Answer: (C)

Furosemide is administered during renal imaging primarily to assess and rule out uretropelvic obstruction. This diuretic agent increases urine output, which is beneficial for evaluating the kidneys' function and anatomy during imaging studies. By promoting diuresis, furosemide helps to enhance visualization of the renal collecting system and can indicate whether there is an obstruction affecting urine passage. When furosemide stimulates the kidneys to produce more urine, it can help in differentiating whether any observable abnormalities on the imaging studies are due to obstruction rather than other underlying conditions. If there is no obstruction, the kidneys should continue to filter and pass urine effectively, allowing for a clearer assessment of their functionality and structure during nuclear imaging procedures. The other options, while they touch upon aspects that furosemide might affect, do not directly align with the primary reason for its administration in the context of renal imaging.

Furosemide is administered during renal imaging primarily to assess and rule out uretropelvic obstruction. This diuretic agent increases urine output, which is beneficial for evaluating the kidneys' function and anatomy during imaging studies. By promoting diuresis, furosemide helps to enhance visualization of the renal collecting system and can indicate whether there is an obstruction affecting urine passage.

When furosemide stimulates the kidneys to produce more urine, it can help in differentiating whether any observable abnormalities on the imaging studies are due to obstruction rather than other underlying conditions. If there is no obstruction, the kidneys should continue to filter and pass urine effectively, allowing for a clearer assessment of their functionality and structure during nuclear imaging procedures.

The other options, while they touch upon aspects that furosemide might affect, do not directly align with the primary reason for its administration in the context of renal imaging.