Final answer:
All of the statements mentioned contribute to professional controls to prevent injury during medical imaging procedures.
Step-by-step explanation:
All four statements listed contribute to professional controls to prevent injury during medical imaging procedures, including ultrasound imaging. Statement 1 suggests minimizing sustained bending, twisting, reaching, lifting, and transducer pressure, which helps to reduce strain on the sonographer's body. Statement 2 emphasizes varying scanning techniques and transducer grips to avoid repetitiveness and muscle fatigue. Statement 3 highlights the importance of maintaining equipment height, regardless of the sonographer, to ensure ergonomics and reduce the risk of injury. Statement 4 advises avoiding forward and backward reaches, which can strain the sonographer's muscles. These measures collectively contribute to creating a safe working environment and reducing the risk of injury.