After 20 minutes of activity with one SCBA bottle, a firefighter's core temperature averages above which value?

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Multiple Choice

After 20 minutes of activity with one SCBA bottle, a firefighter's core temperature averages above which value?

When firefighters work in turnout gear with an SCBA, the body generates heat from activity and the protective clothing impedes heat loss. That combination causes the core temperature to rise over time. After about 20 minutes of sustained effort with one SCBA bottle, the average core temperature tends to be just over 101.5 F (roughly 38.6 C). This level reflects the typical threshold where heat strain becomes noticeable and safety actions—like cooling or rest—may be needed. The other numbers are below or above this common average for that duration, but 101.5 F is the standard reference point in this scenario.

When firefighters work in turnout gear with an SCBA, the body generates heat from activity and the protective clothing impedes heat loss. That combination causes the core temperature to rise over time. After about 20 minutes of sustained effort with one SCBA bottle, the average core temperature tends to be just over 101.5 F (roughly 38.6 C). This level reflects the typical threshold where heat strain becomes noticeable and safety actions—like cooling or rest—may be needed. The other numbers are below or above this common average for that duration, but 101.5 F is the standard reference point in this scenario.

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