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In the first 4 days, a wound is most probably infected.
產生傷口四天之內發生感染的可能性最大。
So the wound should be covered with dressings.
因此傷口需要包扎。
The dressing can increase healing, reduce pain and improve the appearance of the wound and surrounding tissue.
包扎可以加速愈合、減少疼痛，還能加快傷口及其周圍組織外觀恢復。
Dressings having several functions.
包扎有幾項功能。
They help avoid further injury, prevent pollution from the microorganisms, increase patient comfort and control bleeding.
它可以防止再度受傷、防止微生物感染、令病人感覺舒適，還可以控制流血。
All wounds may appear to be polluted.
可能所有的傷口看上去都像是被感染了。
However, they are not necessarily infected.
然而，事實并非如此。
Generally, the clinical symptoms of wound infection begin in 36 to 48 hours after surgery or injury.
一般情況下，傷口感染的臨床癥狀在手術或者受傷后36——48小時內顯現出來。
If a patient's temperature and pulse rate increase, maybe an infectious process has started.
如果病人的體溫升高，脈搏加速，那么他的傷口可能發生了感染。
As inflammation of the wound happens, and the infection becomes worse, the area may become tender and reddened.
如果傷口發炎，感染情況將會更糟，傷口周圍可能變軟變紅。
Foul-smelling, purulent drainage may be found.
還可能出現異味、化膿等癥狀。
Without such signs and symptoms, it does not mean necessarily that the wound is not infected.
沒有這些跡象和癥狀也并不一定意味著傷口沒有感染。
There are different kinds of dressings. Among them, gauze dressings are the most common one.
敷料的種類很多。其中最常見的一種是紗布敷料。
So, gauze dressings cause little wound irritation.
紗布對傷口的刺激性最小。
The nurse may use either wet or dry dressings.
護士使用的敷料可能是濕潤的也可能是干燥的。
During dressing changes asepsis should be paid attention to, for it helps to prevent wound infection.
更換敷料時應當注意無菌操作，因為這樣可以預防感染。
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