【terminator812】評論

(A) 新劑型不含溫室氣體（green-house gases）：錯誤。環保推進劑（新劑型）主要是 hydrofluoroalkanes（HFAs），而 HFAs 是一種溫室氣體，但它們的溫室效應相對舊劑型來說較低。(B) 舊劑型用起來沒有冰涼的感覺：錯誤。舊劑型推進劑（如氟利昂等）在使用時會產生冰涼的感覺，而這是因為舊劑型中的推進劑具有臨界溫度較低，在噴出時會吸熱冷卻周圍空氣。(C) 環保推進劑之成分主要為 hydrofluoroalkanes（HFAs）：正確。環保推進劑（新劑型）主要使用 hydrofluoroalkanes（HFAs） 作為推進劑。這些 HFAs 被認為對臭氧層的破壞較小，相對於舊劑型中使用的氟利昂等物質，對環境影響更輕微。(D) 舊劑型要快吸：這個是.....要趕快吸舊的嗎XD~

【貓貓肉】評論

4.下列何種吸入劑之推進劑（propellants）最為環保？(A) hydrofluoroamines(B) hydrofluoroalkanes(C) chlorofluoroamines(D) chlorofluoroalkanes專技 - 調劑學與臨床藥學-108年 - 108-2 專技高考_藥師（二）：調劑學與臨床藥學#7819414.有關計量噴霧吸入劑（metered dose inhaler, MDI）之敘述，下列何者錯誤？(A) MDI釋放出噴霧為溶於推進劑（propellant）之藥品(B) MDI釋放出噴霧為懸浮於推進劑之藥品(C) MDI目前常用氫氟烷類（hydrofluoro-alkanes, HFAs）做為推進劑(D) 目前氯氟碳類（chlorofluorocarbons, CFCs）推進劑基於會破壞臭氧原因，已完全禁用於MDI專技 - 調劑學與臨床藥學-102年 - 102-1 專技高考_藥師：調劑學與臨床藥學#9866

【passpass】評論

原文書Metered dose inhaler (MDI)An MDI (Fig. 43.3) delivers an aerosol of drug dissolved or suspended in a propellant. Immediately an MDI is actuated, some of the propellant rapidly evaporates to produce droplets of appropriate size to be inhaled into the lung. Further evaporation of propellant may occur in the mouth and the socalled ‘cold-freon effect’ occurs if there is further evaporation of propellant (freon) when the aerosol impacts on the back of the throat. The sensation produced by the cold-freon effect can be sufficient in a minority of individuals to stop the inhalation and means that these individuals cannot use MDIs. The propellants currently used are generally hydrofluoroalkanes (HFAs). Chlorofluoroalkanes, also known as chlorofluorocarbons (CFCs), were formerly used as propellants, but are now banned by international treaty because of their ozonedepleting properties. It should perhaps be noted that while HFAs do not have the ozone-depleting effects of CFCs, both CFCs and HFAs are ‘greenhouse’ gases.45 下列有關MDI（Metered-dose inhaler）的敘述，何者正確？(A) Hydrofluoroalkane 會對臭氧層造成破壞，即將被淘汰(B) 非氟氯碳化合物推進劑可更有效率地將藥物分子送入呼吸道(C) 將MDI 接上吸入輔助器可降低對推進劑的需求(D) 吸氣時需用力快速吸氣編輯私有筆記及自訂標籤

【dd5252011】評論

推進器propellants差異處 舊氯Cl會破壞臭氧層，已禁用新氟F環保，如HFA、HFC記法:太輕浮(碳、氫、氟)