What is the survival rate after 1 hour?

• A. 91%
• B. 81%
• C. 36.7%
• D. 33.7%

Answer: (A)

Survivability in a collapse is highly time-dependent: the sooner you locate and stabilize a victim, the greater their chance of surviving. In the first hour, rescue teams can often deliver rapid assessment, airway management, hemorrhage control, and prompt transport, which keeps the overall survival probability high. Training data and typical survival curves used in US&R indicate that a large majority of victims who are found and managed within the first hour remain alive, around 90–92 percent, which aligns with about 91 percent. The other numbers represent scenarios with longer delays or more severe injuries, where survival drops more sharply as time passes and conditions worsen. So, the figure near 91 percent reflects the high survival potential in the early phase when actions are fast and effective.