1. Which of the following is an example of tertiary prevention? a. Vaccination for rotavirus for children younger than the age of 1 year b. Surgical amputation of an extremity with osteosarcoma (bone cancer) c. Screening for gestational diabetes after 24 weeks of pregnancy d. Sexual education program in elementary schools e. Increasing taxes for buying cigarettes ANS: B Surgical amputation of an extremity with osteosarcoma (bone cancer) is an example in which when a disease is present the treatment (amputation) is done to reduce the impact of disease by preventing the tumor from dissemination. Vaccination for rotavirus for children younger than the age of 1 year, sexual education program in elementary schools, and increasing taxes for buying cigarettes represent examples of primary prevention. Screening for gestational diabetes after 24 weeks of pregnancy is an example of secondary prevention. 2. This historic character observed was more common among women treated by physicians and medical students compared with women treated by midwives. Based on his observations, he implemented a hand wash policy that resulted in adecrease in mortality. Name the character that we are talking about. a. John Snow b. Edward Jenner c. D.A. Henderson d. Leon Gordis e. Ignaz Semmelweis ANS: E Ignaz Semmelweis identified that medical students and physicians transmitted the disease by not washing their hands after examining bodies at autopsies and conducting multiple examinations in the clinic. 3. Thanks to the contributions of Edward Jenner, the following disease was eradicated later by efforts organized by D.A. Henderson: a. Cholera b. Smallpox c. Chickenpox d. Polio e. Zika