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Volume 17, Number 7—July 2011

CME ACTIVITY

Hantavirus Pulmonary Syndrome, United States, 1993–2009

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.org. If you are not registered on Medscape.org, 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.

Hantavirus Pulmonary Syndrome, United States, 1993–2009

Medscape CME Questions

1. You are seeing a 50-year-old woman with a 2-day history of headache, myalgia, and fever to 39.5°C. While your differential diagnosis remains broad for this patient, what should you consider regarding the epidemiology of infection with hantavirus?

A. The majority of hantavirus pulmonary syndrome (HPS) cases in the United States are caused by the Sin Nombre virus

B. Hantavirus is primarily transmitted via droplet secretions from human to human

C. The incubation period of HPS is usually less than 48 hours

D. Human fecal-oral transmission is the principal source of hantavirus

2. The prevalence of HPS is highest and most variable over time in which region of the United States?

A. Eastern region

B. Southern region

C. Midwest region

D. Southwest region

3. The patient from Question #1 develops HPS. What does the current study suggest regarding her prognosis?

A The case-fatality rate was 35%

B. Older age predicted a higher fatality rate

C. Patients in the Southwest were most likely to die from HPS

D. The mean time from symptom onset to death was 3.5 weeks

4. Based on the results of the current study, which of the following laboratory findings is associated with the most significant risk for mortality due to HPS?

A. Any thrombocytopenia

B. Reduced hematocrit

C. Elevated serum creatinine

D. Reduced serum albumin

Activity Evaluation

1. The activity supported the learning objectives.
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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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