直接革兰氏染色在革兰氏阳性球菌血培养阳性中鉴别葡萄球菌与链球菌的效能。
Efficacy of direct Gram stain in differentiating staphylococci from streptococci in blood cultures positive for gram-positive cocci.
作者信息
Agger W A, Maki D G
出版信息
J Clin Microbiol. 1978 Feb;7(2):111-3. doi: 10.1128/jcm.7.2.111-113.1978.
Abstract
A preponderance of clusters seen on direct Gram stain of blood cultures positive for gram-positive cocci was 98% sensitive and 100% specific for identification of staphylococcal species or of Peptococcus. A preponderance of chains, pairs, or both was 100% sensitive and 98% specific for identifying streptococci. Further presumptive identification of either staphylococci or streptococci based on microscopic morphology was unreliable. The direct Gram stain is highly reliable for differentiating staphylococci from streptococci and should be of considerable value to clinicians selecting initial antimicrobial therapy.
摘要
在革兰氏阳性球菌血培养直接革兰氏染色中观察到的大量菌簇，对于鉴定葡萄球菌属或消化球菌属，敏感度为98%，特异度为100%。大量的链状、成对或两者皆有的形态，对于鉴定链球菌的敏感度为100%，特异度为98%。基于显微镜形态对葡萄球菌或链球菌进行进一步的初步鉴定并不可靠。直接革兰氏染色在区分葡萄球菌和链球菌方面高度可靠，对于临床医生选择初始抗菌治疗应具有相当大的价值。
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