Patho Exam 3

Which of the following modes of transmission does not occur with HIV infection?

Saliva transmission to intact skin

Which statement best describes the etiologic development and transmission of AIDS?

AIDS is caused by a retrovirus and transmitted through body fluids

The primary reason that an effective HIV vaccine is difficult to produce is that

HIV mutates frequently

Which disorder is considered a primary immunodeficiency disease?

HIV/AIDS

J.B. developed an opportunistic infection that is to be managed with an antibiotic. J.B. has received this antibiotic once previously with no adverse reactions. Which of the following statements should guide administration of the drug this time?

anaphylaxis is antibody mediated and may occur on second exposure

HIV infection causes immunodeficiency because it

causes the destruction of T helper cells

R.V. is a 28-year-old HIV-positive man recently hospitalized for evaluation of symptoms of progressive weakness, dyspnea, weight loss, and low-grade fever. A biopsy of R.V.'s lung tissue reveals Pneumocystis carinii pneumonia. This diagnosis means that R.V.

has AIDS

Patients with immunodeficiency disorders are usually identified because they develop what?

infections from opportunistic organisms

Dramatic hypotension sometimes accompanies type I hypersensitivity reactions because

massive histamine release from mast cells leads to vasodilation

The clinical latency period after HIV infection is a time when

no significant symptoms of immunodeficiency occur.