发烧，医学术语又称发热，是指致热原直接作用于体温调节中枢、体温中枢功能紊乱或各种原因 $<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>导致产热过多、散热减少，从而引起体温升高超出正常范围（腋窝测量体温超过 37.3℃<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(38-39)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(38-39)]" }, "output": -1. }]<|FunctionResultEnd|>）。

<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(38-39)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(38-39)]" }, "output": -1. }]<|FunctionResultEnd|>以下从不同方面讲解发烧症状：<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|> 体温变化相关症状 体温上升期： 畏寒或寒战：<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>这是体温上升期最早出现的症状之一。

患者会感觉<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>发冷，即使在温暖的环境中也可能<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>不自觉地添加衣物或裹紧被子。

严重时会出现寒战，<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>即全身肌肉不自主地颤抖，这是身体为了增加产热<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>所做出的反应。

<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|> 皮肤苍白、干燥：<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>在体温上升阶段，体表血管收缩，<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>以减少热量散失，<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>因此皮肤会变得苍白、<|FunctionCallBegin|>[{"name":"天工Plugin","parameters": {"input":"N[1.0*(37.3-38)]"}}]<|FunctionCallEnd|> <|FunctionResultBegin|>[{ "name": "天工Plugin", "parameters": { "input": "N[1.0*(37.3-38)]" }, "output": -0.7 }]<|FunctionResultEnd|>干燥。

<|FunctionCallBegin|>[{"name":"