What type of scan is performed using Tc mertiatide (MAG-3)?

• A. Bone scan
• B. Cardiac scan
• C. Renal function scan
• D. Neurological scan

Answer: (C)

Tc mertiatide (MAG-3) is specifically designed for evaluating renal function. This radiopharmaceutical is utilized in dynamic renal imaging, which allows for the assessment of renal perfusion, function, and excretion. The radiotracer is taken up by the renal tubular cells, and its distribution is imaged using gamma camera technology, providing critical information about the kidneys' functionality and blood flow.

The importance of using Tc mertiatide in renal scans lies in its ability to help identify various conditions, such as renal obstruction, ischemia, or the differential function of each kidney in cases of suspected renal disease. By assessing how well the kidneys are filtering and how effectively they are concentrating the tracer, healthcare providers can make informed decisions regarding diagnoses and treatment options.

Other scanning techniques, such as bone scans, cardiac scans, and neurological scans, utilize different radiopharmaceuticals tailored to assess the respective organs or systems and are not suitable for evaluating renal function. Thus, using Tc mertiatide in a renal function scan is the optimal choice for examining kidney health and performance.