As they prepare to enter Zone 4 (the magnet room), Sarah performs a final screening. She notices a small metallic nose bridge in David’s face mask. This is a vital catch—thermal burns from conductive materials like metal in masks or even "invisible" silver fibers in athletic wear are the most common adverse events in MRI. She quickly swaps his mask for a safe, non-metallic version. The Scan: Physics in Motion
: A "panic button" that David can press to stop the scan instantly if he feels overwhelmed. MRI in Practice
Her first patient is David, who is visibly shaking with claustrophobia—a common barrier in MRI practice. Sarah uses a delicate approach, a technique prioritized in study guides like Review Questions for MRI . She explains that while the 1.5 Tesla magnet is powerful enough to align the hydrogen protons in his body, he won't feel a thing. To ease his anxiety, she provides: As they prepare to enter Zone 4 (the