【評論主題】31. 空氣22℃時的飽和水蒸氣含量為19.42 mg/L，若吸入22℃的空氣其相對濕度為50%，此時濕度缺損（humiditydeficit）為多少 mg/L？(A)24.38(B)27.58(C)

【評論內容】

19.42*0.5=9.71

43.8-9.71=34.09

【評論主題】73,有關氧氣濃缩機(O2 concentrators之敘述,下列何者錯誤?(A)利用壓力擺盪吸收(pressure swing adsorption)方式收集氧氣(B)將空氣透過分子篩molecul

【評論內容】

Egan's p.1294

At flows of 1 to 2 L/min, the typical molecular sieve concentrator provides between 92% and 95% O2. At 5 L/min or greater, O2 concentrations are between 85% and 93%.

【評論主題】34.有關暴露於吸人氣氣濃度(FiO2):100%之氧氣下的生理變化,下列何者錯誤?(A)暴露0~12小時,肺功能仍正常(B)暴露12〜24小時,降低肺活量(vitalcapacity)(C)暴露25

【評論內容】

降低肺泡一動脈氧分壓差P(A-a)O2為25-30hr

【評論主題】33.使用高壓氣體減壓閥（high-pressure reducing valve）時的安全風險和考量，下列敘述何者錯誤？(A)開啟減壓閥時會造成氣體溫度急劇增加(B)聯結減壓閥到氣體鋼瓶前，應先接妥

【評論內容】

egan's p.899 box40-1

Never connect fixed or adjustable orifices or metering devices directly to a cylinder without a pressure-reducing valve.