36 吳先生因為車禍住院治療,期間併發綠膿桿菌(Pseudomonas aeruginosa)性肺炎,請問吳先生的肺炎不適宜用下列何種抗生素治療?
(A) Aztreonam
(B) Ertapenem
(C) Imipenem
(D) Meropenem
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統計: A(29), B(98), C(14), D(10), E(0) #413734
統計: A(29), B(98), C(14), D(10), E(0) #413734
詳解 (共 2 筆)
#2929256
Carbapenems是β-lactam抗生素中的一類,它與傳統β-lactam抗生素的不同主要在於化學結構式中的β-lactam環內第2及第3位置間比Penicillin多了一個不飽和鍵,且β-lactam環中的硫原子也被碳原子所取代,也因而讓此類抗生素不易被β-lactamase所破壞,臨床上常用的此類抗生素包括了Imipenem/Cilastatin、Meropenem 和Ertapenem,但Ertapenem對綠膿桿菌(Pseudomonas aeruginosa)先天就無效
ref:Meropenem 與 Imipenem/Cilastatin 的臨床治療與使用時機 中興醫院 一般內科 蔡正堅 醫師
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#829684
Carbapenems are a class of beta-lactam antibiotics. They have broad-spectrum antibacterial activity, being active against many aerobic and anaerobic gram-positive and gram-negative organisms.
Carbapenems inhibit bacterial cell wall synthesis by binding to the penicillin binding proteins and interfering with cell wall formation. They are extremely resistant to beta-lactamase enzymes, making them very useful in treating bacterial infections where beta-lactamase is produced that makes other beta-lactam antibiotics ineffective.
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