Which term describes the act of becoming pale?

• A. Blanch
• B. Chest physical therapy
• C. Ischemia
• D. Maceration

Answer: (A)

The act of becoming pale is blanching. This is a reversible color change in the skin that happens when blood flow to the area is momentarily reduced, such as with pressing on the skin or vasoconstriction. When the pressure is removed, color typically returns quickly due to reactive hyperemia as blood flow resumes. This term is useful in PT practice for noting vascular status or skin integrity, especially in areas at risk for pressure or poor perfusion. By contrast, ischemia refers to a broader state of insufficient blood supply to tissue (a condition, not the action of turning pale), maceration describes skin softening and wrinkling from prolonged moisture, and chest physical therapy encompasses airway clearance techniques rather than a skin color change.