MUGA Scans/Radionuclide Angiography (RNA) Scans

Resting Gated Blood Pool Scan (RGBPS), Resting MUGA, or Resting Radionuclide Angiography 
A nuclear scan to see how the heart wall moves and how much blood is expelled with each heartbeat, while the patient is at rest. 

Exercise Gated Blood Pool Scan, Exercise MUGA, or Exercise Radionuclide Angiography 
A nuclear scan to see how the heart wall moves and how much blood is expelled with each heartbeat, just after the patient has walked on a treadmill or ridden on a stationary bike. 

Resting First Pass
The scan taken while the patient is at rest to measure the percentage of blood going through the heart with each beat.

Exercise First Pass
The scan taken while the patient is exercising to measure the percentage of blood going through the heart with each beat.