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How can the risk of infection be reduced before birth, during delivery, and after birth?

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Please expand on the answers and follow the example I’ve attached. Retype the questions before answering them please, contact me with any questions.
(HIV Part 1)
Ms. C.W. is a college student with an active social life. she is in a relationship with a fellow classmate who says that he has not had many relationships before theirs. After a party, they engage in unprotected sex, although they usually use a condom. She believes she will be safe because he shows no signs of AIDS and comes from a nice home. Several weeks later her friend tells her he has just tested HIV+.
She immediately seeks testing from the campus center and is told that three tests over several months will be done. She is offered azidothymidine (AZT) as a preventive medication that may reduce infectivity.
Discussion Questions
1. Why does the health care center recommend more than one test for HIV antibody status?
2. What is the action of the AZT in preventing infection with HIV?
Ms. C.W.’s second test shows the presence of HIV antibodies and she is diagnosed HIV+. Although this is a great shock to her, her physician and counselor helper he to accept the fact she is HIV+ and can most likely live several years if she takes a combination of antiretroviral drugs. Ms. C.W.’s CD4 helper cell count rises and remain in a healthy range. She pursues a career and meets a man whom she marries.
3. What is the risk of transmission of HIV to men versus women? What are considered very high risk practices?
4. What factors might the couple consider in deciding whether to have a child?
5. What is the risk of transmitting HIV during pregnancy and labor and delivery
6. How can the risk of infection be reduced before birth, during delivery, and after birth?
7. Ms. C.W. wants to breast fee her daughter, but her doctor tells her that she should not do so. Why should she not breast feed?
Aspiration)
Sammy, age 3 years, ate his dinner and then said his tummy hurt. His mother suggested he lie down in the adjacent room while his parents finished dinner. A few minutes later, they heard Sammy vomiting. His mother rushed in to lift Sammy up. When vomiting ceased, they noticed Sammy continued to cough and seemed to be choking. He was struggling to breathe and a wheezing sound was obvious. It appeared that he had aspirated some vomitus. His parents drove him to a nearby hospital for examination.
Discussion Questions
1. Discuss the specific effects of aspirating vomitus on Sammy, including the probable effects on his bronchi and lungs. Why might one lung be affected more than the other?
2. Discuss the pathophysiologic changes causing the signs and symptoms and any tests required to clarify the effects on Sammy.
3. Suggest some reasons for Sammy’s difficulty breathing and wheezing.
4. Discuss the potential complications of aspiration of vomitus.

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