Mr. A is shocked at the news that he has HIV since he has never been stuck with a contaminated needle, has never had sex with a man, and has been in a monogamous heterosexual relationship for the past 6 months and she does not have HIV. 5. What could be the source of his infection? 6. What is the significance of the window period? 7. Several months later, Mr. A’s CD4 T-cell count is 250 cells/uL and he has several painful lymph nodes. What are the three stages of HIV infection, and what is Mr. A’s current status? Mr. A was started on a combination of medications and he wants to know why he has to take so many and if he will be cured. How will the nurse respond? What is wasting syndrome? 8. 9.