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Volume 17, Number 3—March 2011

CME ACTIVITY

Staphylococcus aureus Infections in US Veterans, Maryland, USA, 1999–20081

Earning Medscape CME Credit

To obtain credit, you should first read the journal article. After reading the article, you should be able to answer the following, related, multiple-choice questions. To complete the questions and earn continuing medical education (CME) credit, please go to www.medscape.org/journal/eid. Credit cannot be obtained for tests completed on paper, although you may use the worksheet below to keep a record of your answers. You must be a registered user on Medscape.com. If you are not registered on Medscape.com, please click on the New Users: Free Registration link on the left hand side of the website to register. Only one answer is correct for each question. Once you successfully answer all post-test questions you will be able to view and/or print your certificate. For questions regarding the content of this activity, contact the accredited provider, CME@medscape.net. For technical assistance, contact CME@webmd.net. American Medical Association's Physician's Recognition Award (AMA PRA) credits are accepted in the US as evidence of participation in CME activities. For further information on this award, please refer to http://www.ama-assn.org/ama/pub/category/2922.html. The AMA has determined that physicians not licensed in the US who participate in this CME activity are eligible for AMA PRA Category 1 Credits™. Through agreements that the AMA has made with agencies in some countries, AMA PRA credit is acceptable as evidence of participation in CME activities. If you are not licensed in the US and want to obtain an AMA PRA CME credit, please complete the questions online, print the certificate and present it to your national medical association.

Staphylococcus aureus Infections in US Veterans, Maryland, USA, 1999–2008

Medscape CME Questions

1. On the basis of the current retrospective cohort study by Dr. Tracy and colleagues, which of the following statements about the overall incidence of Staphylococcus aureus infections in the Veterans Affairs Maryland Healthcare System between fiscal years 1999 and 2008 is most likely correct?

A. Incidence of all S. aureus infections significantly decreased

B. Changes in incidence of all S. aureus infections were most striking during and following 2005

C. 10-year average overall incidence per 100,000 veterans was 749 ± 132

D. The findings are applicable to pediatric units

2. You are an infection-control officer in a Maryland veterans hospital. On the basis of the study by Dr. Tracy and colleagues, which of the following statements about trends in invasive vs noninvasive S. aureus infections, methicillin susceptibility, and location of onset and infection site is most likely to apply to infection control at your hospital?

A. About half of S. aureus infections are likely to be invasive

B. A projected increase in overall S. aureus infections is most likely to be driven by invasive, methicillin-sensitive, hospital-onset infections

C. More than half of all noninvasive infections are likely to be skin and soft tissue infections

D. Hospital-onset invasive MRSA infections are likely to significantly increase

3. As the infection-control officer described in question 2, which of the following hospital infection-control practices do you think would be most likely to reduce incidence of invasive S. aureus infections, as based on their use in the VA hospital studied by Dr. Tracy and colleagues?

A. Hand-washing with soap and water rather than using alcohol-based hand gels

B. Central-line bundles

C. Surveillance cultures for methicillin-sensitive S. aureus

D. Soap-and-water rather than chlorhexidine bathing for surgical patients

Activity Evaluation

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2. The material was organized clearly for learning to occur.
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3. The content learned from this activity will impact my practice.
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4. The activity was presented objectively and free of commercial bias.
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