A school nurse is teaching high school students about HIV and ...

[arivle123]

A school nurse is teaching high school students about HIV and AIDS in the context of the school's sexual health curriculum. Which of the students' following statements would the nurse most likely want to correct or clarify?
 
  A)
  They have to take a blood sample from you in order to test you for AIDS.
  B)
  Drugs for AIDS reduce the virus in your body, but they don't get rid of it.
  C)
  Lots more heterosexual people get HIV these days than they used to.
  D)
  Condoms provide really good protection from AIDS.

Question 2

Following a spider bite she received while camping, a 20-year-old female presented to the emergency department with rash, edema, and fever and was subsequently diagnosed with serum sickness.
 
  Which of the following statements best conveys the physiological rationale for the broad systemic effects of this event?
  A)
  The woman is experiencing diffuse tissue necrosis as a consequence of an Arthus reaction.
  B)
  Antigen-antibody complexes have been deposited in a variety of locations throughout the body.
  C)
  Antibody binding to specific target cell receptors is bringing about a change in cell function.
  D)
  Deposited antibodies are activating her complement system.

[wshriver]

Answer to Question 1

Ans:
A

Feedback:

Oral tests now exist for preliminary diagnosis of HIV. Medications for AIDS do not cure the disease, and incidence is increasing among heterosexuals. Condoms provide effective protection from the virus.

Answer to Question 2

Ans:
B

Feedback:

Serum sickness is characterized by the deposition of antigen-antibody complexes in blood vessels, joints, heart, and kidney tissue. The deposited complexes activate complement, increase vascular permeability, and recruit phagocytic cells, all of which can promote focal tissue damage and edema. Serum sickness is not synonymous with an Arthus reaction. Antibody binding to specific target cell receptors causing a change in cell function is characteristic of antibody-mediated cellular dysfunction. Serum sickness is not associated with the activation of the complement system.