病人因胸部、腹部及背部嚴重燒傷入院。在急症期，哪項臨床發現最令人擔憂？

嚴重燒傷（severe burns）在急症期（emergent phase），首要關注的是維持病人的生命體徵，尤其是呼吸道暢通（Airway）與循環穩定（Circulation）。胸部、腹部和背部的廣泛燒傷可能導致嚴重的組織損傷、體液流失和全身性發炎反應。 核心概念：燒傷的急症期（通常是燒傷後的前 48 小時）是體液轉移期，體液從血管內滲漏至組織間隙，導致循環血量減少和組織水腫。同時，吸入性損傷或燒傷部位的水腫可能阻塞呼吸道。 臨床思路：ABC 原則優先。氣道（Airway）的維護是燒傷病人急症期最首要且最危急的考量。一旦氣道受損或阻塞，將迅速導致死亡。

In a client with severe burns during the emergent phase, the primary concern is maintaining vital functions, especially airway patency and circulatory stability. Extensive burns over the chest, abdomen, and back can cause severe tissue damage, fluid loss, and a systemic inflammatory response. Core concept: The emergent phase of burn care (generally the first 48 hours after the burn) is a period of fluid shift, in which fluid leaks from the intravascular space into the interstitium, leading to decreased circulating volume and tissue edema. At the same time, inhalation injury or edema at the burn site may obstruct the airway. Clinical reasoning: The ABC principle takes precedence. Airway management is the most critical and urgent consideration in the emergent phase of burn care. Once the airway is compromised or obstructed, death may follow rapidly.