阿摩線上測驗
23.下列何者最接近等張（isotonic）溶液？
(A)lactated Ringer’s injection
(B)3% NaCl injection
(C)10% dextrose injection
(D)5% dextrose injection
答案：登入後查看
統計： A(1540), B(16), C(38), D(975), E(0) #3131660
統計： A(1540), B(16), C(38), D(975), E(0) #3131660
詳解 (共 7 筆)
亮亮亮亮亮亮亮亮
#5900059
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選項 lactated Ringer's injection 最接近等張（isotonic）溶液。
等張溶液是指其溶液濃度與體液細胞內外的溶液濃度相同，不會導致細胞的脫水或腫脹。在選項中，lactated Ringer's injection 與體液的濃度較為相似，因此是最接近等張溶液的選項。
B. 3% NaCl injection 是高滲透壓溶液，會導致細胞脫水。C. 10% dextrose injection 是低滲透壓溶液，會導致細胞腫脹。
D. 5% dextrose injection 也是低滲透壓溶液，會導致細胞腫脹。
希望這樣的解釋能夠幫助你理解選擇 A 的原因。如果還有其他問題，歡迎繼續詢問！
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小笨蛋
#6233215
Explanation:
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An isotonic solution has an osmolarity of approximately 280-310 mOsm/L, which is similar to that of body fluids1.
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Lactated Ringer's injection is a balanced electrolyte solution that is formulated to be isotonic with blood plasma.
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3% NaCl (option B) is a hypertonic solution, which has a much higher osmolarity than isotonic solutions.
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10% dextrose (option C) and 5% dextrose (option D) are both hypertonic solutions, with 10% being more hypertonic than 5%.
Among the given options, lactated Ringer's injection is the closest to being isotonic with body fluids, making it the most appropriate answer.
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