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| | FDA/CFSAN BAM - Staphylococcus aureus |
 | | This test is claimed to be as specific as the coagulase test but less subjective, because it involves a color change from blue to bright pink. | | | A consensus of peers has established that a 4+ coagulase reaction is necessary for unquestioned identification of S. | | | There has been considerable controversy about the significance and correct method of reading the coagulase test. |
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http://www.cfsan.fda.gov/~ebam/bam-12.html
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| | Topical ointment for preventing infection in preterm infants |
| | In the trial by Edwards, there was sufficient power to report a significantly increased risk of coagulase negative staphylococcal infection in infants treated with prophylactic ointment group compared to infants in the control group (RR 1.40, 95% CI 1.08, 1.83) (Edwards 2001). | | | This benefit does not outweigh the increased risks of coagulase negative staphylococcal and any nosocomial infection in compromised premature infants. | | | Randomized controlled trials which compared the effect of prophylactic application of topical ointment to routine (standard) skin care or as needed topical therapy in preterm infants are included in this review. |
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http://www.nichd.nih.gov/cochraneneonatal/SOLL7/SOLL.HTM
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| | BIOCHEMICAL CHARACTERIZATION OF STAPHYLOCOCCI FROM RABBITS |
| | The incidence of beta-haemolysis (12.9%) correlates with the findings of others who gave the percentage and incidence of beta haemolysin production in coagulase positive human associated strains of Staphylococcus aureus to be 10.8% and 11.8% respectively (26,27). | | | Gram positive, cluster forming, catalase positive and oxidase negative cocci were characterized as staphylococci according to standard methods (17). | | | This is because natural barriers may be compromised through injury, medical or managemental stress or immunosuppression with resultant life-threatening disease (25) will cause severe economic loss. |
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http://www.isrvma.org/article/56_2_2.htm
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| | CMPT November 1999 M93-1 |
| | cfu/L) of a coagulase negative staphylococcus (Staphylococcus epidermidis). | | | Laboratories were notified that results would be assessed based on CMPT's clinical relevancy criteria. | | | The reporting of susceptibility information, even in the presence of a cautionary report is considered by the CMPT as unacceptable as it implicitly encourages therapy. |
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http://www.interchg.ubc.ca/cmpt/critiques_97_99/m93_1nov_99.htm
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| | Medmicro Chapter 12 |
| | Coagulase is a traditional marker for identifying S aureus in the clinical microbiology laboratory. | | | S aureus and S intermedius are coagulase positive. | | | Nevertheless, the term is still in widespread use among clinical microbiologists. |
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http://gsbs.utmb.edu/microbook/ch012.htm
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| | Staphylococcus |
| | Coagulase negative strains of Staphylococcus are generally non-invasive. | | | Under certain conditions, however, they may cause severe disease (e.g. | | | Otherwise, methicillin, oxacillin, cephalosporins or vancomycin may be required. |
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http://www.cehs.siu.edu/fix/medmicro/staph.htm
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| | StaphTex Kit |
| | Ordinarily, a homogeneous background of white color should be observed for most negative results. | | | Included among the 376 clinical isolates used in this study, 85 were methicillin-susceptible S. | | | Protein A, on the other hand, is independent from coagulase activity. |
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http://www.hardydiagnostics.com/catalog/hugo/StaphTexKit.htm
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| | Staphylococcus |
| | Production of staphylococcal enterotoxins and TSST-1 by coagulase negative | | | These vectors may offer a genetic system for the introduction of recombinant plasmids into coagulase negative | | | Clavulanate potentiated amoxycillin was found to be highly active against penicillin, ampicillin and amoxycillin resistant organisms. |
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http://www.bionewsonline.com/5/2/staphylococci_e.htm
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| | Staphylococcus |
| | isolated in hemoculture from humans}; Votava M et al.; Of 162 strain of coagulase negative | | | coagulase negative infection in neonates caused by intravascular catheters. | | | (coagulase negative three pts, coagulase positive three pts), and four of these pts experienced prior biopsy site infection, skin necrosis or repeated seroma aspirations, a skin source for contamination was suggested. |
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http://www.bionewsonline.com/6/1/staphylococci_f.htm
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| | Coag. -ve staph. |
| | Coagulase negative staphylococci become potentially pathogenic as soon as the natural balance between micro-organisms and the immune system is disturbed: immunocompromised patients are particular susceptible to intravascular catheter related infection. | | | Pathogenicity is increased by the ability to adhere to biomedical devices |
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http://www.aic.cuhk.edu.hk/web8/coagulase_negative_staphylococci.htm
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| | Coagulase book search page |
| | excuse it, as Coagulase might by the theory that the sensational element |
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http://www.trybooktitle.com/coagulase.html
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| | Coagulase Test |
| | The coagulase tube test has been set up as a demo for you to observe in class. | | | The coagulase test is useful for differentiating potentially pathogenic Staphylococci such as Staphylococcus aureus from other Gram positive, catalase-positive cocci. | | | You may need to place the slide over a light box to observe the clumping of cells in the plasma. |
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http://www.austin.cc.tx.us/microbugz/html/coagulase_test.html
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| | Coagulase Tests |
| | How might the production of coagulase be beneficial to an organism, and why might it be associated with more pathogenic organisms? | | | Both tests use the same substrate: plasma which has been treated to prevent the normal clotting which occurs in untreated plasma. | | | Each test, however, identifies whether or not a specific type of coagulase enzyme is present in the organism being test. |
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http://www.austin.cc.tx.us/microbugz/45coag.html
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| | BSCI 424 Coagulase Test |
| | Thereafter, the lack of clotting could be a false negative reaction with a coagulase-positive strain. | | | A test that shows any degree of clotting within 24 hours is considered coagulase positive. | | | This illustrates the importance of reading the coagulase results within 24 hours. |
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http://life.umd.edu/classroom/bsci424/LabMaterialsMethods/CoagulaseTest.htm
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| | Coagulase - Wikipedia, the free encyclopedia |
| | The resulting complex is called staphylothrombin, which causes blood to clot by converting fibrinogen to fibrin. | | | In laboratory, it is used to distinguish between different types of Staphylococcus isolates. | | | Fibrin-coated staphylococci resist phagocytosis making the bacteria more virulent. |
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http://en.wikipedia.org/wiki/Coagulase
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| | CMPT M94-4 February 2000 |
| | A positive slide coagulase test may aid in the differentiation of Staphylococcus aureus, Staphylococcus lugdunensis and Staphylococcus schleiferi from the coagulase-negative staphylococci such as Staphylococcus epidermidis. | | | Sixty-eight out of 73 (93%) laboratories reported a negative coagulase test result. | | | The laboratory that reported the correct identification, but without an antimicrobial susceptibility result received a grade of 1. |
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http://www.interchg.ubc.ca/cmpt/critiques_00_2002/m94_4feb_2000.htm
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| | Coagulase Test |
| | However, all negative slide coagulase tests must be repeated by the coagulase tube method to avoid missing Staphylococcus aureus strains only producing bound coagulase and not free coagulase. | | | A negative slide test should be confirmed by the coagulase tube test. | | | The mechanism involves the activation of a plasma coagulase-reacting factor (CRF) which is a modified or derived thrombin molecule, to form a coagulase-CRF complex. |
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http://dentistry.ouhsc.edu/intranet-WEB/Courses/DMI_8351/Coagulase.html
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| | NON COAGULASE NEGATIVE STAPHYLOCOCCUS (CONS) CATHETER RELATED SEPSIS (CRS) IN NEWBORN INFANTS |
| | Other pathogens are also isolated which need specific treatment and have a worse prognosis. | | | Because of mortality risk, specific antibiotherapy must be discussed in these infections and early catheter removal. | | | Non coagulase negative Staphylococcus (CoNS) catheter related sepsis (CRS) in newborn infants M. Dib-Nauphal (1), M. Rajguru (1), P. Mariani-Kurkdjian (2), E. Bingen (2), Y. Aujard (1) – (1) Neonatal department, (2) Microbiology – Hopital Robert Debrי – Paris – France CoNS is the most common pathogen responsible of CRS in newborn. |
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http://www.kenes.com/espid2001/ESPID_Abstracts/146.htm
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| | FSC 840 - Lecture Notes: Class 1 |
| | Coagulase Positive: S. intermedius (veterinary pathogen) and S. | | | Incubate for 6 h and observe for a firm clot (> 4+) which is positive for S. | | | Used as a follow-up to weak coagulase test result (2+, 3+) |
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http://www.msu.edu/course/fsc/840/class16.html
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| | HENOTYPIC CHARACTERISTICS OF STAPHYLOCOCUS AUREUS STRAINS ISOLATED FROM MILK |
| | All slide coagulase-negative strains were subjected to the tube coagulase test but slide coagulase test-positive strains were not further tested. | | | All strains were initially subjected to the slide coagulase test for detection of bound coagulase. | | | hyicus were shown to be coagulase positive (26,27,28). |
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http://www.isrvma.org/article/54_1_3.htm
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| | Coagulase Test |
| | This test is for the bound coagulase enzyme. | | | Since there are 2 kinds of coagulase enzyme—bound and free---there are 2 different tests that can be used to identify these enzymes. | | | coagulation is considered a positive test for the free coagulase enzyme. |
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http://www.rlc.dcccd.edu/mathsci/reynolds/micro/lab_manual/coagulase.html
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| | H:\MURIANAP\FS591I\LECT19\19LECT.SAM |
| | There have been 7 different coagulases identified among the staphylococci. | | | Coagulase/Thermonuclease have both been used as diagnostic indicators for the potential of S. | | | Another correlation with enterotoxin- producing strains is the production of a heat-resistant nuclease. |
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http://www.okstate.edu/OSU_Ag/fapc/fsw/staph/staphpm.htm
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| | COAGULASE TEST |
| | Bacteria that produce coagulase use it as a defense mechanism by clotting the areas of plasma around them, thereby enabling themselves to resist phagocytosis by the host's immune system. | | | Like the mannitol salts agar, the coagulase test is another method for differienting between pathogenic and non-pathogenic strains of Staphylococcus. | | | A positive test is denoted by a clot formation in the test tube after the allotted time. |
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http://medic.med.uth.tmc.edu/path/coag.htm
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| | D5 MRSA |
| | Our objective was to modify existing laboratory protocols for coagulase testing for more accurate detection. | | | Strains belonging to 2 epidemic clones (CMRSA-1 and -2) are sometimes tube coagulase negative after 4 h incubation at 35-37°C and may be weak or negative after overnight incubation at room temperature (RT). | | | Objective: The tube coagulase test has been considered the “gold standard” for the identification of S. |
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http://www.cacmid.ca/abstracts_02/d5.htm
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| | [No title] |
| | If the slide coagulase test is negative, we can only say we have Staphylococcus. | | | If the tube does not clot, then it is coagulase negative Staphylococcus (CNS). | | | We need to perform an additional coagulase test known as the |
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http://www.clevelandchiropractic.edu/ClassFiles-LA/Microbiology/staph.htm
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| | Microbiology 51 Virtual Laboratory : caseB |
| | This organism produces visible clumps on the slide. | | | An organism that does not produce the enzyme coagulase can be readily suspended in the drop of rabbit plasma, resulting in a milky, homogeneous suspension on the slide. | | | Question 6 You conclude that the suspect is _____ A. |
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http://www.med.unc.edu/~rtwarog/caseB/B_Q6_c.html
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| | Laboratory Demonstrations |
| | Weak coagulase producers may require this prolonged incubation period to develop clots. | | | The laboratory identification of Group B hemolytic streptococci has been simplified by implementation of the CAMP test which is easy to perform and well within the capabilities of small laboratories. | | | The laboratory test based on detecting the production of the enzyme coagulase by Staphylococcus species is used to differentiate between staphylococci and streptococci, as well as between coagulase-negative staphylococci and Staphylococcus aureus. |
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http://web.indstate.edu/thcme/micro/demo1.html
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| | Speciation of Coagulase Negative Staphylococcus causing Bacterial Keratitis Manikandan P, Bhaskar M, Revathy R, John ... |
| | Speciation was done based on biochemical tests,[2] which included coagulase production, oxidase, acetoin production and susceptibility to novobiocin and a set of sugars (lactose, maltose, mannitol, fructose, sucrose, trehalose, xylose, cellobiose, raffinose and mannose). | | | The latter are the indigenous flora of our skin and mucous membrane. | | | All these organisms were labelled CoNS after reconfirmation with the coagulase test. |
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http://www.ijo.in/article.asp?issn=0301-4738;year=2005;volume=53;issue=1;spage=59;epage=60;aulast=Manikandan
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| | Shaken Baby Alan |
| | A blood culture reported light growth of gram positive cocci, coagulase negative, probably a contaminant. | | | It should be pointed out that the predominance of lymphocytes (61%) in the white blood count is a hallmark of a pertussis reaction (Nelson Text Pediatrics, 2000:839). |
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http://www.woodmed.com/ShakenBabyAlan.htm
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| | Memórias do Instituto Oswaldo Cruz - Vol.99(8) December 2004 |
| | The scheme proposed by Kloos and Schleifer (1975) and modified by Bannerman (2003) is the method conventionally used; however, this method is relatively laborious for routine use since a large number of biochemical tests are required. | | | In most laboratories of routine, staphylococci are identified based on morphological aspects of the colonies, gram staining and catalase and coagulase production, which only permit the classification of staphylococci into S. |
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http://memorias.ioc.fiocruz.br/998/5199.html
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| | 1913Lcoagulasguide |
| | The coagulase test is most useful in identifying which of the following microbes? | | | The coagulase medium used _____ to prevent normal clotting before the actions of a coagulase | | | A coagulase positive bacteria in the Coagulase test medium will |
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http://www.gpc.edu/~larmstea/1913Lcoagulasguide.html
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| | Coagulase |
| | Coagulases are produced by certain staphylococci and by Yersinia pestis. | | | Staphylocoagulase; Staphylococcal Clumping Factor; Clumping Factor (Staphylococcal); Staphylococcus aureus clone pSCa2 of Coagulase; Staphylococcus aureus strain 213 of Coagulase; Staphylococcus aureus strain 8325-4 of Coagulase | | | Staphylococci produce two types of coagulase: Staphylocoagulase, a free coagulase that produces true clotting of plasma, and Staphylococcal clumping factor, a bound coagulase in the cell wall that induces clumping of cells in the presence of fibrinogen. |
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http://medical.webends.com/kw/Coagulase
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| | Tests used in the identification of Bacteria |
| | If any other party aside from students of the University of Leeds should access this information, the University of Leeds accepts no responsibility for any such unauthorised use. | | | This test detects the presence of "clumping factor" and is not a true coagulase test. | | | Place three separate drops of saline on a clean slide. |
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http://www.bmb.leeds.ac.uk/mbiology/ug/ugteach/icu8/tests/coagulase.html
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